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<span>Afficher / masquer la sous-section Voir aussi</span> </button> <ul id="toc-Voir_aussi-sublist" class="vector-toc-list"> <li id="toc-Articles_connexes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Articles_connexes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Articles connexes</span> </div> </a> <ul id="toc-Articles_connexes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Liens_externes" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Liens_externes"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.2</span> <span>Liens externes</span> </div> </a> <ul id="toc-Liens_externes-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sommaire" class="vector-toc-landmark"> <div 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mw-first-heading"><span class="mw-page-title-main">Numéro CAS</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Aller à un article dans une autre langue. Disponible en 60 langues." > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-60" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">60 langues</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/CAS-registernommer" title="CAS-registernommer – afrikaans" lang="af" hreflang="af" data-title="CAS-registernommer" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B1%D9%82%D9%85_%D8%A7%D9%84%D8%AA%D8%B3%D8%AC%D9%8A%D9%84_CAS" title="رقم التسجيل CAS – arabe" lang="ar" hreflang="ar" data-title="رقم التسجيل CAS" data-language-autonym="العربية" data-language-local-name="arabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/N%C3%BAmberu_de_rexistru_CAS" title="Númberu de rexistru CAS – asturien" lang="ast" hreflang="ast" data-title="Númberu de rexistru CAS" data-language-autonym="Asturianu" data-language-local-name="asturien" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/CAS-da_qeydiyyat_n%C3%B6mr%C9%99si" title="CAS-da qeydiyyat nömrəsi – azerbaïdjanais" lang="az" hreflang="az" data-title="CAS-da qeydiyyat nömrəsi" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaïdjanais" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/CAS_%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%B5%D0%BD_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80" title="CAS регистрационен номер – bulgare" lang="bg" hreflang="bg" data-title="CAS регистрационен номер" data-language-autonym="Български" data-language-local-name="bulgare" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%95%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B8_%E0%A6%A8%E0%A6%BF%E0%A6%AC%E0%A6%A8%E0%A7%8D%E0%A6%A7%E0%A6%A8_%E0%A6%A8%E0%A6%AE%E0%A7%8D%E0%A6%AC%E0%A6%B0" title="ক্যাস নিবন্ধন নম্বর – bengali" lang="bn" hreflang="bn" data-title="ক্যাস নিবন্ধন নম্বর" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Niverenn_CAS" title="Niverenn CAS – breton" lang="br" hreflang="br" data-title="Niverenn CAS" data-language-autonym="Brezhoneg" data-language-local-name="breton" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/CAS_registarski_broj" title="CAS registarski broj – bosniaque" lang="bs" hreflang="bs" data-title="CAS registarski broj" data-language-autonym="Bosanski" data-language-local-name="bosniaque" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/N%C3%BAmero_CAS" title="Número CAS – catalan" lang="ca" hreflang="ca" data-title="Número CAS" data-language-autonym="Català" data-language-local-name="catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Registra%C4%8Dn%C3%AD_%C4%8D%C3%ADslo_CAS" title="Registrační číslo CAS – tchèque" lang="cs" hreflang="cs" data-title="Registrační číslo CAS" data-language-autonym="Čeština" data-language-local-name="tchèque" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/CAS-nummer" title="CAS-nummer – danois" lang="da" hreflang="da" data-title="CAS-nummer" data-language-autonym="Dansk" data-language-local-name="danois" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/CAS-Nummer" title="CAS-Nummer – allemand" lang="de" hreflang="de" data-title="CAS-Nummer" data-language-autonym="Deutsch" data-language-local-name="allemand" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%91%CF%81%CE%B9%CE%B8%CE%BC%CF%8C%CF%82_CAS" title="Αριθμός CAS – grec" lang="el" hreflang="el" data-title="Αριθμός CAS" data-language-autonym="Ελληνικά" data-language-local-name="grec" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/CAS_Registry_Number" title="CAS Registry Number – anglais" lang="en" hreflang="en" data-title="CAS Registry Number" data-language-autonym="English" data-language-local-name="anglais" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/CAS-numero" title="CAS-numero – espéranto" lang="eo" hreflang="eo" data-title="CAS-numero" data-language-autonym="Esperanto" data-language-local-name="espéranto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/N%C3%BAmero_de_registro_CAS" title="Número de registro CAS – espagnol" lang="es" hreflang="es" data-title="Número de registro CAS" data-language-autonym="Español" data-language-local-name="espagnol" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/CAS-i_registreerimisnumber" title="CAS-i registreerimisnumber – estonien" lang="et" hreflang="et" data-title="CAS-i registreerimisnumber" data-language-autonym="Eesti" data-language-local-name="estonien" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/CAS_erregistro_zenbaki" title="CAS erregistro zenbaki – basque" lang="eu" hreflang="eu" data-title="CAS erregistro zenbaki" data-language-autonym="Euskara" data-language-local-name="basque" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%B4%D9%85%D8%A7%D8%B1%D9%87_%D8%AB%D8%A8%D8%AA_%D8%B3%DB%8C%E2%80%8C%D8%A7%DB%8C%E2%80%8C%D8%A7%D8%B3" title="شماره ثبت سی‌ای‌اس – persan" lang="fa" hreflang="fa" data-title="شماره ثبت سی‌ای‌اس" data-language-autonym="فارسی" data-language-local-name="persan" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/CAS-numero" title="CAS-numero – finnois" lang="fi" hreflang="fi" data-title="CAS-numero" data-language-autonym="Suomi" data-language-local-name="finnois" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/CAS-Numer" title="CAS-Numer – frison septentrional" lang="frr" hreflang="frr" data-title="CAS-Numer" data-language-autonym="Nordfriisk" data-language-local-name="frison septentrional" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/N%C3%BAmero_CAS" title="Número CAS – galicien" lang="gl" hreflang="gl" data-title="Número CAS" data-language-autonym="Galego" data-language-local-name="galicien" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%A4%D7%A8_CAS" title="מספר CAS – hébreu" lang="he" hreflang="he" data-title="מספר CAS" data-language-autonym="עברית" data-language-local-name="hébreu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/CAS_%E0%A4%B8%E0%A4%82%E0%A4%96%E0%A5%8D%E0%A4%AF%E0%A4%BE" title="CAS संख्या – hindi" lang="hi" hreflang="hi" data-title="CAS संख्या" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/CAS_registarski_broj" title="CAS registarski broj – croate" lang="hr" hreflang="hr" data-title="CAS registarski broj" data-language-autonym="Hrvatski" data-language-local-name="croate" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/CAS-sz%C3%A1m" title="CAS-szám – hongrois" lang="hu" hreflang="hu" data-title="CAS-szám" data-language-autonym="Magyar" data-language-local-name="hongrois" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Nomor_CAS" title="Nomor CAS – indonésien" lang="id" hreflang="id" data-title="Nomor CAS" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonésien" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/CAS-n%C3%BAmer" title="CAS-númer – islandais" lang="is" hreflang="is" data-title="CAS-númer" data-language-autonym="Íslenska" data-language-local-name="islandais" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Numero_CAS" title="Numero CAS – italien" lang="it" hreflang="it" data-title="Numero CAS" data-language-autonym="Italiano" data-language-local-name="italien" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/CAS%E7%99%BB%E9%8C%B2%E7%95%AA%E5%8F%B7" title="CAS登録番号 – japonais" lang="ja" hreflang="ja" data-title="CAS登録番号" data-language-autonym="日本語" data-language-local-name="japonais" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/CAS_%EB%93%B1%EB%A1%9D%EB%B2%88%ED%98%B8" title="CAS 등록번호 – coréen" lang="ko" hreflang="ko" data-title="CAS 등록번호" data-language-autonym="한국어" data-language-local-name="coréen" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/N%C3%BCmer_CAS" title="Nümer CAS – lombard" lang="lmo" hreflang="lmo" data-title="Nümer CAS" data-language-autonym="Lombard" data-language-local-name="lombard" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/CAS_registracijos_numeris" title="CAS registracijos numeris – lituanien" lang="lt" hreflang="lt" data-title="CAS registracijos numeris" data-language-autonym="Lietuvių" data-language-local-name="lituanien" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/CAS-%D0%B1%D1%80%D0%BE%D1%98" title="CAS-број – macédonien" lang="mk" hreflang="mk" data-title="CAS-број" data-language-autonym="Македонски" data-language-local-name="macédonien" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B8%E0%B4%BF.%E0%B4%8E.%E0%B4%8E%E0%B4%B8%E0%B5%8D_%E0%B4%B1%E0%B4%9C%E0%B4%BF%E0%B4%B8%E0%B5%8D%E0%B4%9F%E0%B5%8D%E0%B4%B0%E0%B4%BF_%E0%B4%A8%E0%B4%AE%E0%B5%8D%E0%B4%AA%E0%B5%BC" title="സി.എ.എസ് റജിസ്ട്രി നമ്പർ – malayalam" lang="ml" hreflang="ml" data-title="സി.എ.എസ് റജിസ്ട്രി നമ്പർ" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms badge-Q70893996 mw-list-item" title=""><a href="https://ms.wikipedia.org/wiki/Nombor_Pendaftaran_CAS" title="Nombor Pendaftaran CAS – malais" lang="ms" hreflang="ms" data-title="Nombor Pendaftaran CAS" data-language-autonym="Bahasa Melayu" data-language-local-name="malais" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/CAS-Tall" title="CAS-Tall – bas-allemand" lang="nds" hreflang="nds" data-title="CAS-Tall" data-language-autonym="Plattdüütsch" data-language-local-name="bas-allemand" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/CAS-nummer" title="CAS-nummer – néerlandais" lang="nl" hreflang="nl" data-title="CAS-nummer" data-language-autonym="Nederlands" data-language-local-name="néerlandais" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/CAS-nummer" title="CAS-nummer – norvégien nynorsk" lang="nn" hreflang="nn" data-title="CAS-nummer" data-language-autonym="Norsk nynorsk" data-language-local-name="norvégien nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/CAS-nummer" title="CAS-nummer – norvégien bokmål" lang="nb" hreflang="nb" data-title="CAS-nummer" data-language-autonym="Norsk bokmål" data-language-local-name="norvégien bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Num%C3%A8ro_CAS" title="Numèro CAS – occitan" lang="oc" hreflang="oc" data-title="Numèro CAS" data-language-autonym="Occitan" data-language-local-name="occitan" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Numer_CAS" title="Numer CAS – polonais" lang="pl" hreflang="pl" data-title="Numer CAS" data-language-autonym="Polski" data-language-local-name="polonais" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/N%C3%BAmero_CAS" title="Número CAS – portugais" lang="pt" hreflang="pt" data-title="Número CAS" data-language-autonym="Português" data-language-local-name="portugais" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Num%C4%83r_registru_CAS" title="Număr registru CAS – roumain" lang="ro" hreflang="ro" data-title="Număr registru CAS" data-language-autonym="Română" data-language-local-name="roumain" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%BE%D0%BD%D0%BD%D1%8B%D0%B9_%D0%BD%D0%BE%D0%BC%D0%B5%D1%80_CAS" title="Регистрационный номер CAS – russe" lang="ru" hreflang="ru" data-title="Регистрационный номер CAS" data-language-autonym="Русский" data-language-local-name="russe" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/CAS_registarski_broj" title="CAS registarski broj – serbo-croate" lang="sh" hreflang="sh" data-title="CAS registarski broj" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croate" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/CAS_registry_number" title="CAS registry number – Simple English" lang="en-simple" hreflang="en-simple" data-title="CAS registry number" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Registra%C4%8Dn%C3%A9_%C4%8D%C3%ADslo_CAS" title="Registračné číslo CAS – slovaque" lang="sk" hreflang="sk" data-title="Registračné číslo CAS" data-language-autonym="Slovenčina" data-language-local-name="slovaque" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/%C5%A0tevilka_CAS" title="Številka CAS – slovène" lang="sl" hreflang="sl" data-title="Številka CAS" data-language-autonym="Slovenščina" data-language-local-name="slovène" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A6%D0%90%D0%A1_%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D0%B0%D1%80%D1%81%D0%BA%D0%B8_%D0%B1%D1%80%D0%BE%D1%98" title="ЦАС регистарски број – serbe" lang="sr" hreflang="sr" data-title="ЦАС регистарски број" data-language-autonym="Српски / srpski" data-language-local-name="serbe" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/CAS-nummer" title="CAS-nummer – suédois" lang="sv" hreflang="sv" data-title="CAS-nummer" data-language-autonym="Svenska" data-language-local-name="suédois" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%9A%E0%AE%BF%E0%AE%8F%E0%AE%8E%E0%AE%9A%E0%AF%81_%E0%AE%8E%E0%AE%A3%E0%AF%8D" title="சிஏஎசு எண் – tamoul" lang="ta" hreflang="ta" data-title="சிஏஎசு எண்" data-language-autonym="தமிழ்" data-language-local-name="tamoul" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%80%E0%B8%A5%E0%B8%82%E0%B8%97%E0%B8%B0%E0%B9%80%E0%B8%9A%E0%B8%B5%E0%B8%A2%E0%B8%99_CAS" title="เลขทะเบียน CAS – thaï" lang="th" hreflang="th" data-title="เลขทะเบียน CAS" data-language-autonym="ไทย" data-language-local-name="thaï" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Bilang_Pangrehistro_ng_CAS" title="Bilang Pangrehistro ng CAS – 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<div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="fr" dir="ltr"><p>Le <b>numéro CAS</b> (<i><span class="lang-en" lang="en">CAS number</span></i> ou <i><span class="lang-en" lang="en">CAS registry number</span></i> en anglais) d'une <a href="/wiki/Substance_chimique" title="Substance chimique">substance chimique</a>, <a href="/wiki/Polym%C3%A8re" title="Polymère">polymère</a>, séquence biologique et <a href="/wiki/Alliage" title="Alliage">alliage</a> est son numéro d'enregistrement unique auprès de la <a href="/wiki/Banque_de_donn%C3%A9es" class="mw-redirect" title="Banque de données">banque de données</a> de <a href="/wiki/Chemical_Abstracts_Service" title="Chemical Abstracts Service"><span class="lang-en" lang="en">Chemical Abstracts Service</span></a> (CAS), une division de l'<a href="/wiki/American_Chemical_Society" title="American Chemical Society"><span class="lang-en" lang="en">American Chemical Society</span></a> (ACS). Le CAS assigne ces numéros à chaque substance chimique qui a été décrite dans la documentation. De plus, CAS maintient et commercialise une base de données de ces substances, le <i><span class="lang-en" lang="en">CAS Registry</span></i>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Description">Description</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=1" title="Modifier la section : Description" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=1" title="Modifier le code source de la section : Description"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>En 2018, plus de <span class="nowrap">90 millions</span> de substances <a href="/wiki/Chimie_organique" title="Chimie organique">organiques</a> et <a href="/wiki/Chimie_inorganique" class="mw-redirect" title="Chimie inorganique">inorganiques</a> ont reçu un numéro CAS<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. 219 millions de substances ont reçu un numéro CAS depuis le XVIIIe siècle<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>. Plus de dix substances sont enregistrées par minute, soit 604 800 nouvelles substances par semaine<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>. Le but est de faciliter les recherches dans les bases de données, vu que les produits chimiques ont souvent différents noms. Presque toutes les bases de données de molécules actuelles permettent une recherche par numéro CAS. </p><p>Les numéros CAS sont attribués dans un ordre croissant et n'ont pas de signification particulière. Une entrée se décline en trois parties séparées par un tiret. La première peut contenir jusqu'à sept chiffres, la deuxième contient deux chiffres, la troisième contient un chiffre pour la <a href="/wiki/Somme_de_contr%C3%B4le" title="Somme de contrôle">somme de contrôle</a>. Cette dernière se calcule en prenant le <abbr class="abbr" title="Premier">1<sup>er</sup></abbr> chiffre <span class="nowrap">fois 1</span>, le <abbr class="abbr" title="Deuxième">2<sup>e</sup></abbr> <span class="nowrap">fois 2</span>, et ainsi de suite en partant de l'avant-dernier (de droite à gauche). La somme de ces résultats intermédiaires est ensuite additionnée <span class="nowrap"><a href="/wiki/Congruence_sur_les_entiers" title="Congruence sur les entiers">modulo</a> 10</span>. Par exemple, le numéro CAS de l'<a href="/wiki/Eau" title="Eau">eau</a> est <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=7732-18-5&language=fr&title=Numéro_CAS">7732-18-5</a></span></span> : sa somme de contrôle vaut <span class="nowrap">(8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105 et 105 mod 10 = 5</span> soit le dernier groupement du numéro CAS. </p><p>Les différents <a href="/wiki/Isom%C3%A9rie" title="Isomérie">isomères</a> d'une <a href="/wiki/Mol%C3%A9cule" title="Molécule">molécule</a> ont un numéro CAS différent : le <small>D</small>-<a href="/wiki/Glucose" title="Glucose">glucose</a> a <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=50-99-7&language=fr&title=Numéro_CAS">50-99-7</a></span></span>, le <small>L</small>-glucose a <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=921-60-8&language=fr&title=Numéro_CAS">921-60-8</a></span></span>, le α-<small>D</small>-glucose a <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=26655-34-5&language=fr&title=Numéro_CAS">26655-34-5</a></span></span>, <abbr class="abbr" title="et cetera">etc.</abbr> À l'inverse parfois, une classe complète de molécules reçoit un seul numéro : le groupe des <a href="/wiki/Alcool_d%C3%A9shydrog%C3%A9nase" title="Alcool déshydrogénase">alcools déshydrogénases</a> a <span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=9031-72-5&language=fr&title=Numéro_CAS">9031-72-5</a></span></span>. </p><p>Lors de recherche par numéro CAS dans les bases de données, il est utile d'inclure le numéro de composés proches. Par exemple, pour chercher de l'information sur la <a href="/wiki/Coca%C3%AFne" title="Cocaïne">cocaïne</a> (<span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=50-36-2&language=fr&title=Numéro_CAS">50-36-2</a></span></span>), il faut aussi chercher pour chlorhydrate de cocaïne (<span class="reflink plainlinksneverexpand"><span class="noarchive"><a class="external text" href="//tools.wmflabs.org/magnustools/cas.php?cas=53-21-4&language=fr&title=Numéro_CAS">53-21-4</a></span></span>), puisque c'est sous cette forme que la cocaïne est utilisée en tant que drogue. </p> <div class="mw-heading mw-heading2"><h2 id="Ressources">Ressources</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=2" title="Modifier la section : Ressources" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=2" title="Modifier le code source de la section : Ressources"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Pour retrouver le numéro CAS d'un composé à partir de son nom, de sa <a href="/wiki/Formule_chimique" title="Formule chimique">formule chimique</a> ou de sa structure, les ressources <span class="need_ref" title="Une source est souhaitée pour ce passage." style="cursor:help;">libres</span><sup class="need_ref_tag" style="padding-left:2px;"><a href="/wiki/Aide:R%C3%A9f%C3%A9rence_n%C3%A9cessaire" title="Aide:Référence nécessaire">[<abbr class="abbr" title="référence">réf.</abbr> souhaitée]</a></sup> suivantes sont disponibles : ChemIDplus<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>, <span class="lang-en" lang="en">Chemistry WebBook</span><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup>, <span class="lang-en" lang="en">NCI Database Browser</span><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup>, <span class="lang-en" lang="en">ChemSub Online: Portal and Information System on Chemical Substances</span><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> et ChemExper<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup>. </p> <div class="mw-heading mw-heading2"><h2 id="Références"><span id="R.C3.A9f.C3.A9rences"></span>Références</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=3" title="Modifier la section : Références" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=3" title="Modifier le code source de la section : Références"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="references-small decimal" style=""><div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a> </span><span class="reference-text"><span class="ouvrage"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> « <a rel="nofollow" class="external text" href="http://www.cas.org/"><cite style="font-style:normal;" lang="en"><span class="lang-en" lang="en">Chemical Abstracts Service</span></cite></a> » <small style="line-height:1em;">(consulté le <time class="nowrap" datetime="2014-11-04" data-sort-value="2014-11-04">4 novembre 2014</time>)</small></span>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a> </span><span class="reference-text"><span class="ouvrage"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> « <a rel="nofollow" class="external text" href="https://www.cas.org/cas-data/cas-registry"><cite style="font-style:normal;" lang="en">CAS REGISTRY®</cite></a> »</span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a> </span><span class="reference-text"><span class="ouvrage" id="Eric_Drexler2013"><span class="ouvrage" id="K._Eric_Drexler2013"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> K. Eric Drexler, <cite class="italique" lang="en">Radical Abundance, How A Revolution In Nanotechnology Will Change Civilization</cite>, USA, <time>2013</time> <small style="line-height:1em;">(<a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Sp%C3%A9cial:Ouvrages_de_r%C3%A9f%C3%A9rence/978-1-61039-113-9" title="Spécial:Ouvrages de référence/978-1-61039-113-9"><span class="nowrap">978-1-61039-113-9</span></a>)</small>, <abbr class="abbr" title="page">p.</abbr> 181<span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Radical+Abundance%2C+How+A+Revolution+In+Nanotechnology+Will+Change+Civilization&rft.place=USA&rft.au=K.+Eric+Drexler&rft.date=2013&rft.pages=181&rft.isbn=978-1-61039-113-9&rfr_id=info%3Asid%2Ffr.wikipedia.org%3ANum%C3%A9ro+CAS"></span></span></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a> </span><span class="reference-text"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://chem2.sis.nlm.nih.gov/chemidplus/chemidlite.jsp">ChemIDplus</a> (<a href="/wiki/National_Institutes_of_Health" title="National Institutes of Health">NIH</a>).</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a> </span><span class="reference-text"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://webbook.nist.gov/chemistry/"><span class="lang-en" lang="en">Chemistry WebBook</span></a> (<a href="/wiki/National_Institute_of_Standards_and_Technology" title="National Institute of Standards and Technology">NIST</a>).</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a> </span><span class="reference-text"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://cactvs.cit.nih.gov/"><span class="lang-en" lang="en">NCI Database Browser</span></a>.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><a href="#cite_ref-7">↑</a> </span><span class="reference-text"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://chemsub.online.fr/"><span class="lang-en" lang="en">ChemSub Online: Portal and Information System on Chemical Substances</span></a> (avec noms de substances en français).</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><a href="#cite_ref-8">↑</a> </span><span class="reference-text"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> <a rel="nofollow" class="external text" href="http://www.chemexper.com/">ChemExper</a>.</span> </li> </ol></div> </div> <div class="mw-heading mw-heading2"><h2 id="Voir_aussi">Voir aussi</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=4" title="Modifier la section : Voir aussi" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=4" title="Modifier le code source de la section : Voir aussi"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Articles_connexes">Articles connexes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=5" title="Modifier la section : Articles connexes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=5" title="Modifier le code source de la section : Articles connexes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Num%C3%A9ro_CE" title="Numéro CE">Numéro CE</a> <ul><li><a href="/wiki/Num%C3%A9ro_EINECS" title="Numéro EINECS">Numéro EINECS</a></li> <li><a href="/wiki/Num%C3%A9ro_ELINCS" title="Numéro ELINCS">Numéro ELINCS</a></li></ul></li> <li><a href="/wiki/Liste_des_num%C3%A9ros_ONU" title="Liste des numéros ONU">Liste des numéros ONU</a></li> <li><a href="/wiki/Num%C3%A9ro_Beilstein" title="Numéro Beilstein">Numéro Beilstein</a></li> <li><a href="/wiki/PubChem" title="PubChem">PubChem</a></li> <li><a href="/wiki/Nomenclature_chimique" title="Nomenclature chimique">Nomenclature chimique</a></li> <li><a href="/wiki/Liste_de_compos%C3%A9s_organiques" title="Liste de composés organiques">Liste de composés organiques</a></li> <li><a href="/wiki/Liste_de_compos%C3%A9s_inorganiques" class="mw-redirect" title="Liste de composés inorganiques">Liste de composés inorganiques</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Liens_externes">Liens externes</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Num%C3%A9ro_CAS&veaction=edit&section=6" title="Modifier la section : Liens externes" class="mw-editsection-visualeditor"><span>modifier</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Num%C3%A9ro_CAS&action=edit&section=6" title="Modifier le code source de la section : Liens externes"><span>modifier le code</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="ouvrage"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> « <a rel="nofollow" class="external text" href="http://www.cas.org/"><cite style="font-style:normal;" lang="en">Chemical Abstracts Service</cite></a> »</span></li> <li><span class="ouvrage"><abbr class="abbr indicateur-langue" title="Langue : anglais">(en)</abbr> « <a rel="nofollow" class="external text" href="http://www.cas.org/content/chemical-substances/faqs"><cite style="font-style:normal;" lang="en">CAS Registry and CAS Registry Number FAQs</cite></a> »</span> (description du registre CAS)</li></ul> <ul id="bandeau-portail" class="bandeau-portail"><li><span class="bandeau-portail-element"><span class="bandeau-portail-icone"><span class="noviewer" typeof="mw:File"><a href="/wiki/Portail:Chimie" title="Portail de la chimie"><img alt="icône décorative" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/24px-Nuvola_apps_edu_science.svg.png" decoding="async" width="24" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/36px-Nuvola_apps_edu_science.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Nuvola_apps_edu_science.svg/48px-Nuvola_apps_edu_science.svg.png 2x" data-file-width="128" data-file-height="128" /></a></span></span> 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mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Basculer la table des matières</span> </label> <div class="vector-dropdown-content"> <div id="vector-sticky-header-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div class="vector-sticky-header-context-bar-primary" aria-hidden="true" ><span class="mw-page-title-main">Numéro CAS</span></div> </div> </div> <div class="vector-sticky-header-end" aria-hidden="true"> <div class="vector-sticky-header-icons"> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-talk-sticky-header" tabindex="-1" data-event-name="talk-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbles mw-ui-icon-wikimedia-speechBubbles"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-subject-sticky-header" tabindex="-1" data-event-name="subject-sticky-header"><span class="vector-icon mw-ui-icon-article mw-ui-icon-wikimedia-article"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-history-sticky-header" tabindex="-1" data-event-name="history-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-history mw-ui-icon-wikimedia-wikimedia-history"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only mw-watchlink" id="ca-watchstar-sticky-header" tabindex="-1" data-event-name="watch-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-star mw-ui-icon-wikimedia-wikimedia-star"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-ve-edit-sticky-header" tabindex="-1" data-event-name="ve-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-edit mw-ui-icon-wikimedia-wikimedia-edit"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-edit-sticky-header" tabindex="-1" data-event-name="wikitext-edit-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-wikiText mw-ui-icon-wikimedia-wikimedia-wikiText"></span> <span></span> </a> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only" id="ca-viewsource-sticky-header" tabindex="-1" data-event-name="ve-edit-protected-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-editLock mw-ui-icon-wikimedia-wikimedia-editLock"></span> <span></span> </a> </div> <div class="vector-sticky-header-buttons"> <button class="cdx-button cdx-button--weight-quiet mw-interlanguage-selector" id="p-lang-btn-sticky-header" tabindex="-1" data-event-name="ui.dropdown-p-lang-btn-sticky-header"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>60 langues</span> </button> <a href="#" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive" id="ca-addsection-sticky-header" tabindex="-1" data-event-name="addsection-sticky-header"><span class="vector-icon mw-ui-icon-speechBubbleAdd-progressive mw-ui-icon-wikimedia-speechBubbleAdd-progressive"></span> <span>Ajouter un sujet</span> </a> </div> <div class="vector-sticky-header-icon-end"> <div class="vector-user-links"> </div> </div> </div> </div> </div> <div class="mw-portlet mw-portlet-dock-bottom emptyPortlet" id="p-dock-bottom"> <ul> </ul> </div> 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