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class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Ligações externas</span> </div> </a> <ul id="toc-Ligações_externas-sublist" class="vector-toc-list"> </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="Conteúdo" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Alternar o índice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Alternar o índice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Número 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="Ir para um artigo noutra língua. Disponível em 60 línguas" > <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 línguas</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 — africanês" lang="af" hreflang="af" data-title="CAS-registernommer" data-language-autonym="Afrikaans" data-language-local-name="africanês" 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 — árabe" lang="ar" hreflang="ar" data-title="رقم التسجيل CAS" data-language-autonym="العربية" data-language-local-name="árabe" 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 — asturiano" lang="ast" hreflang="ast" data-title="Númberu de rexistru CAS" data-language-autonym="Asturianu" data-language-local-name="asturiano" 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 — azerbaijano" lang="az" hreflang="az" data-title="CAS-da qeydiyyat nömrəsi" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaijano" 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 — búlgaro" lang="bg" hreflang="bg" data-title="CAS регистрационен номер" data-language-autonym="Български" data-language-local-name="búlgaro" 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 — bengalês" lang="bn" hreflang="bn" data-title="ক্যাস নিবন্ধন নম্বর" data-language-autonym="বাংলা" data-language-local-name="bengalês" 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 — bretão" lang="br" hreflang="br" data-title="Niverenn CAS" data-language-autonym="Brezhoneg" data-language-local-name="bretão" 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 — bósnio" lang="bs" hreflang="bs" data-title="CAS registarski broj" data-language-autonym="Bosanski" data-language-local-name="bósnio" 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 — catalão" lang="ca" hreflang="ca" data-title="Número CAS" data-language-autonym="Català" data-language-local-name="catalão" 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 — checo" lang="cs" hreflang="cs" data-title="Registrační číslo CAS" data-language-autonym="Čeština" data-language-local-name="checo" 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 — dinamarquês" lang="da" hreflang="da" data-title="CAS-nummer" data-language-autonym="Dansk" data-language-local-name="dinamarquês" 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 — alemão" lang="de" hreflang="de" data-title="CAS-Nummer" data-language-autonym="Deutsch" data-language-local-name="alemão" 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 — grego" lang="el" hreflang="el" data-title="Αριθμός CAS" data-language-autonym="Ελληνικά" data-language-local-name="grego" 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 — inglês" lang="en" hreflang="en" data-title="CAS Registry Number" data-language-autonym="English" data-language-local-name="inglês" 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 — esperanto" lang="eo" hreflang="eo" data-title="CAS-numero" data-language-autonym="Esperanto" data-language-local-name="esperanto" 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 — espanhol" lang="es" hreflang="es" data-title="Número de registro CAS" data-language-autonym="Español" data-language-local-name="espanhol" 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 — estónio" lang="et" hreflang="et" data-title="CAS-i registreerimisnumber" data-language-autonym="Eesti" data-language-local-name="estónio" 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 — basco" lang="eu" hreflang="eu" data-title="CAS erregistro zenbaki" data-language-autonym="Euskara" data-language-local-name="basco" 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 — persa" lang="fa" hreflang="fa" data-title="شماره ثبت سی‌ای‌اس" data-language-autonym="فارسی" data-language-local-name="persa" 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 — finlandês" lang="fi" hreflang="fi" data-title="CAS-numero" data-language-autonym="Suomi" data-language-local-name="finlandês" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Num%C3%A9ro_CAS" title="Numéro CAS — francês" lang="fr" hreflang="fr" data-title="Numéro CAS" data-language-autonym="Français" data-language-local-name="francês" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/CAS-Numer" title="CAS-Numer — frísio setentrional" lang="frr" hreflang="frr" data-title="CAS-Numer" data-language-autonym="Nordfriisk" data-language-local-name="frísio setentrional" 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 — galego" lang="gl" hreflang="gl" data-title="Número CAS" data-language-autonym="Galego" data-language-local-name="galego" 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 — hebraico" lang="he" hreflang="he" data-title="מספר CAS" data-language-autonym="עברית" data-language-local-name="hebraico" 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 — croata" lang="hr" hreflang="hr" data-title="CAS registarski broj" data-language-autonym="Hrvatski" data-language-local-name="croata" 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 — húngaro" lang="hu" hreflang="hu" data-title="CAS-szám" data-language-autonym="Magyar" data-language-local-name="húngaro" 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 — indonésio" lang="id" hreflang="id" data-title="Nomor CAS" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonésio" 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 — islandês" lang="is" hreflang="is" data-title="CAS-númer" data-language-autonym="Íslenska" data-language-local-name="islandês" 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 — italiano" lang="it" hreflang="it" data-title="Numero CAS" data-language-autonym="Italiano" data-language-local-name="italiano" 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 — japonês" lang="ja" hreflang="ja" data-title="CAS登録番号" data-language-autonym="日本語" data-language-local-name="japonês" 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 — coreano" lang="ko" hreflang="ko" data-title="CAS 등록번호" data-language-autonym="한국어" data-language-local-name="coreano" 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 — lombardo" lang="lmo" hreflang="lmo" data-title="Nümer CAS" data-language-autonym="Lombard" data-language-local-name="lombardo" 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 — lituano" lang="lt" hreflang="lt" data-title="CAS registracijos numeris" data-language-autonym="Lietuvių" data-language-local-name="lituano" 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 — macedónio" lang="mk" hreflang="mk" data-title="CAS-број" data-language-autonym="Македонски" data-language-local-name="macedónio" 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 — malaiala" lang="ml" hreflang="ml" data-title="സി.എ.എസ് റജിസ്ട്രി നമ്പർ" data-language-autonym="മലയാളം" data-language-local-name="malaiala" 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 — malaio" lang="ms" hreflang="ms" data-title="Nombor Pendaftaran CAS" data-language-autonym="Bahasa Melayu" data-language-local-name="malaio" 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 — baixo-alemão" lang="nds" hreflang="nds" data-title="CAS-Tall" data-language-autonym="Plattdüütsch" data-language-local-name="baixo-alemão" 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 — neerlandês" lang="nl" hreflang="nl" data-title="CAS-nummer" data-language-autonym="Nederlands" data-language-local-name="neerlandês" 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 — norueguês nynorsk" lang="nn" hreflang="nn" data-title="CAS-nummer" data-language-autonym="Norsk nynorsk" data-language-local-name="norueguês 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 — norueguês bokmål" lang="nb" hreflang="nb" data-title="CAS-nummer" data-language-autonym="Norsk bokmål" data-language-local-name="norueguês 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 — occitano" lang="oc" hreflang="oc" data-title="Numèro CAS" data-language-autonym="Occitan" data-language-local-name="occitano" 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 — polaco" lang="pl" hreflang="pl" data-title="Numer CAS" data-language-autonym="Polski" data-language-local-name="polaco" class="interlanguage-link-target"><span>Polski</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 — romeno" lang="ro" hreflang="ro" data-title="Număr registru CAS" data-language-autonym="Română" data-language-local-name="romeno" 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 — russo" lang="ru" hreflang="ru" data-title="Регистрационный номер CAS" data-language-autonym="Русский" data-language-local-name="russo" 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 — servo-croata" lang="sh" hreflang="sh" data-title="CAS registarski broj" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="servo-croata" 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 — eslovaco" lang="sk" hreflang="sk" data-title="Registračné číslo CAS" data-language-autonym="Slovenčina" data-language-local-name="eslovaco" 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 — esloveno" lang="sl" hreflang="sl" data-title="Številka CAS" data-language-autonym="Slovenščina" data-language-local-name="esloveno" 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 — sérvio" lang="sr" hreflang="sr" data-title="ЦАС регистарски број" data-language-autonym="Српски / srpski" data-language-local-name="sérvio" 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 — sueco" lang="sv" hreflang="sv" data-title="CAS-nummer" data-language-autonym="Svenska" data-language-local-name="sueco" 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 — tâmil" lang="ta" hreflang="ta" data-title="சிஏஎசு எண்" data-language-autonym="தமிழ்" data-language-local-name="tâmil" 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 — tailandês" lang="th" hreflang="th" data-title="เลขทะเบียน CAS" data-language-autonym="ไทย" data-language-local-name="tailandês" 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 — tagalo" lang="tl" hreflang="tl" data-title="Bilang Pangrehistro ng CAS" data-language-autonym="Tagalog" data-language-local-name="tagalo" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/CAS_Kay%C4%B1t_Numaras%C4%B1" title="CAS Kayıt Numarası — turco" lang="tr" hreflang="tr" data-title="CAS Kayıt Numarası" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9D%D0%BE%D0%BC%D0%B5%D1%80_CAS" title="Номер CAS — ucraniano" lang="uk" hreflang="uk" data-title="Номер CAS" data-language-autonym="Українська" data-language-local-name="ucraniano" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a 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href="/w/index.php?title=Registro_CAS&redirect=no" class="mw-redirect" title="Registro CAS">Registro CAS</a></u>)</span></span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="pt" dir="ltr"><p>O <b>número CAS</b> ou <b>registro CAS</b> (<i>CAS number</i> ou <i>CAS registry number</i>, em <a href="/wiki/L%C3%ADngua_inglesa" title="Língua inglesa">inglês</a>) de um <a href="/wiki/Composto_qu%C3%ADmico" title="Composto químico">composto químico</a>, <a href="/wiki/Pol%C3%ADmero" title="Polímero">polímero</a>, <a href="/wiki/Sequ%C3%AAncia_biol%C3%B3gica" title="Sequência biológica">sequência biológica</a> e <a href="/wiki/Liga_met%C3%A1lica" title="Liga metálica">liga</a> é um número com um registro único no banco de dados do <a href="/wiki/Chemical_Abstracts_Service" title="Chemical Abstracts Service">Chemical Abstracts Service</a>, uma divisão da Chemical American Society. O Chemical Abstracts Service atribui esses números a cada <a href="/wiki/Composto_qu%C3%ADmico" title="Composto químico">produto químico</a> que é descrito na literatura. Além disso, CAS mantém e comercializa um <a href="/wiki/Banco_de_dados" title="Banco de dados">banco de dados</a> destas substâncias: o <i>CAS Registry</i>.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span>[</span>1<span>]</span></a></sup> </p><p>O registro mantido pelo CAS é uma coleção oficial de informações divulgadas sobre substâncias químicas. Desde o século XVIII, aproximadamente 219 milhões de substâncias receberam um número CAS<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span>[</span>2<span>]</span></a></sup>, e mais de 10 novas substâncias foram registadas por minuto, ou seja, 604 800 por minuto<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span>[</span>3<span>]</span></a></sup>. O objetivo é facilitar as pesquisas no banco de dados, visto que, muitas vezes, os produtos químicos têm mais de um nome. Quase todos os bancos de dados atuais de <a href="/wiki/Mol%C3%A9cula" title="Molécula">moléculas</a> permitem uma pesquisa pelo <b>número CAS</b>. </p><p>O <b>registro CAS</b> é separado por traços em três partes: a primeira parte tem até 6 algarismos, a segunda, até dois algarismos e a terceira é um número de controle de um algarismo. Os números são atribuídos cronologicamente e não têm significação particular. </p><p>O algarismo de controle é calculado multiplicando-se o último algarismo por um, o seguinte por dois etc. ; soma-se então todos os produtos obtidos e calcula-se o <a href="/wiki/Aritm%C3%A9tica_modular" title="Aritmética modular">módulo aritmético</a> 10 dessa soma (o módulo aritmético 10 de um número é, em poucas palavras, o resto da operação de divisão desse número por 10). Por exemplo, o <b>número CAS</b> da <a href="/wiki/%C3%81gua" title="Água">água</a> é <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle 7732-18-{\color {Blue}5}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mn>7732</mn> <mo>−</mo> <mn>18</mn> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle mathcolor="#2D2F92"> <mn>5</mn> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle 7732-18-{\color {Blue}5}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0ae81a481d765d6b7e36f9cea5f2bbc0293a7c40" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.505ex; width:13.818ex; height:2.343ex;" alt="{\displaystyle 7732-18-{\color {Blue}5}}"></span>; o algarismo de controle é calculado da seguinte maneira: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle (8\cdot 1+1\cdot 2+2\cdot 3+3\cdot 4+7\cdot 5+7\cdot 6)~mod~10=105~mod~10={\color {Blue}5}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo stretchy="false">(</mo> <mn>8</mn> <mo>⋅</mo> <mn>1</mn> <mo>+</mo> <mn>1</mn> <mo>⋅</mo> <mn>2</mn> <mo>+</mo> <mn>2</mn> <mo>⋅</mo> <mn>3</mn> <mo>+</mo> <mn>3</mn> <mo>⋅</mo> <mn>4</mn> <mo>+</mo> <mn>7</mn> <mo>⋅</mo> <mn>5</mn> <mo>+</mo> <mn>7</mn> <mo>⋅</mo> <mn>6</mn> <mo stretchy="false">)</mo> <mtext> </mtext> <mi>m</mi> <mi>o</mi> <mi>d</mi> <mtext> </mtext> <mn>10</mn> <mo>=</mo> <mn>105</mn> <mtext> </mtext> <mi>m</mi> <mi>o</mi> <mi>d</mi> <mtext> </mtext> <mn>10</mn> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle mathcolor="#2D2F92"> <mn>5</mn> </mstyle> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle (8\cdot 1+1\cdot 2+2\cdot 3+3\cdot 4+7\cdot 5+7\cdot 6)~mod~10=105~mod~10={\color {Blue}5}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f9e32e212ecd4ac91bf01de99fa3dfca2162c40" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:66.622ex; height:2.843ex;" alt="{\displaystyle (8\cdot 1+1\cdot 2+2\cdot 3+3\cdot 4+7\cdot 5+7\cdot 6)~mod~10=105~mod~10={\color {Blue}5}}"></span>.</dd></dl> <p>Diferentes <a href="/wiki/Is%C3%B4mero" class="mw-redirect" title="Isômero">isômeros</a> de uma molécula recebem diferentes <b>números CAS</b>: <a href="/w/index.php?title=D%E2%80%93glicose&action=edit&redlink=1" class="new" title="D–glicose (página não existe)">D–glicose</a> tem 50-99-7, <a href="/w/index.php?title=L-glicose&action=edit&redlink=1" class="new" title="L-glicose (página não existe)">L-glicose</a> tem 921-60-8, e <a href="/w/index.php?title=%CE%91-D-glicose&action=edit&redlink=1" class="new" title="Α-D-glicose (página não existe)">α-D-glicose</a> tem 26655-34-5, etc. Às vezes, toda uma série completa de moléculas recebem um só <b>número CAS</b>: o grupo das <a href="/wiki/Desidrogenase" title="Desidrogenase">desidrogenases</a> alco </p> <ul><li><a href="/wiki/NIH" class="mw-redirect" title="NIH">NIH</a>'s <a rel="nofollow" class="external text" href="https://web.archive.org/web/20050706110821/http://chem2.sis.nlm.nih.gov/chemidplus/chemidlite.jsp">ChemIDplus</a></li> <li><a href="/wiki/NIST" class="mw-redirect" title="NIST">NIST</a>'s <a rel="nofollow" class="external text" href="http://webbook.nist.gov/chemistry/">Chemistry WebBook</a></li> <li>O <a rel="nofollow" class="external text" href="https://web.archive.org/web/20050619231617/http://cactvs.cit.nih.gov/">NCI Database Browser</a></li> <li><a rel="nofollow" class="external text" href="http://cactus.nci.nih.gov/chemical/structure">Chemical Identifier Resolver</a></li> <li><a rel="nofollow" class="external text" href="https://www.cdc.gov/niosh/npg/npgdcas.html">NIOSH HomeNIOSH Pocket Guide to Chemical Hazards</a></li> <li><a rel="nofollow" class="external text" href="http://www.commonchemistry.org/index.aspx">Common Chemistry™ from Chemical Abstracts Service (CAS)</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Ver_também"><span id="Ver_tamb.C3.A9m"></span>Ver também</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=N%C3%BAmero_CAS&veaction=edit&section=1" title="Editar secção: Ver também" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=N%C3%BAmero_CAS&action=edit&section=1" title="Editar código-fonte da secção: Ver também"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="-moz-column-count: 2; -webkit-column-count: 2; column-count: 2;"> <ul><li><a href="/wiki/N%C3%BAmero_EINECS" title="Número EINECS">número EINECS</a></li> <li><a href="/wiki/N%C3%BAmero_ELINCS" title="Número ELINCS">número ELINCS</a></li> <li><a href="/w/index.php?title=N%C3%BAmero_NSC&action=edit&redlink=1" class="new" title="Número NSC (página não existe)">número NSC</a></li> <li><a href="/w/index.php?title=N%C3%BAmero_UN&action=edit&redlink=1" class="new" title="Número UN (página não existe)">número UN</a></li> <li><a href="/wiki/Uni%C3%A3o_Internacional_de_Qu%C3%ADmica_Pura_e_Aplicada" title="União Internacional de Química Pura e Aplicada">União Internacional de Química Pura e Aplicada</a></li> <li><a href="/wiki/Formato_de_arquivo_qu%C3%ADmico" title="Formato de arquivo químico">Formato de arquivo químico</a></li> <li><a href="/wiki/Identificador" title="Identificador">Identificador</a></li> <li><a href="/wiki/Identificador_Qu%C3%ADmico_Internacional" title="Identificador Químico Internacional">Identificador Químico Internacional</a> (InChI)</li> <li><a href="/wiki/PubChem" title="PubChem">PubChem</a></li> <li><a href="/wiki/Autoridade_de_registro" title="Autoridade de registro">Autoridade de registro</a></li> <li><a href="/wiki/SMILES" title="SMILES">SMILES</a></li></ul> </div> <h2 id="Referências" style="cursor: help;" title="Esta seção foi configurada para não ser editável diretamente. Edite a página toda ou a seção anterior em vez disso."><span id="Refer.C3.AAncias"></span>Referências</h2> <div class="reflist" style="list-style-type: decimal;"><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"><a rel="nofollow" class="external text" href="http://www.cas.org/content/chemical-substances/faqs">CAS REGISTRY and CAS Registry Number FAQs </a> (em inglês)</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><cite class="citation web"><a rel="nofollow" class="external text" href="https://www.cas.org/cas-data/cas-registry">«CAS REGISTRY»</a>. <i>www.cas.org</i> (em inglês)<span class="reference-accessdate">. Consultado em 3 de setembro de 2024</span></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3AN%C3%BAmero+CAS&rft.atitle=CAS+REGISTRY&rft.genre=unknown&rft.jtitle=www.cas.org&rft_id=https%3A%2F%2Fwww.cas.org%2Fcas-data%2Fcas-registry&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><cite class="citation book">Drexler, K. Eric (2013). <i>Radical Abundance, How A Revolution In Nanotechnology Will Change Civilization</i>. Estados Unidos: PublicAffairs. p. 181. <a href="/wiki/International_Standard_Book_Number" title="International Standard Book Number">ISBN</a> <a href="/wiki/Especial:Fontes_de_livros/978-1-61039-113-9" title="Especial:Fontes de livros/978-1-61039-113-9">978-1-61039-113-9</a></cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fpt.wikipedia.org%3AN%C3%BAmero+CAS&rft.aufirst=K.+Eric&rft.aulast=Drexler&rft.btitle=Radical+Abundance%2C+How+A+Revolution+In+Nanotechnology+Will+Change+Civilization&rft.date=2013&rft.genre=book&rft.isbn=978-1-61039-113-9&rft.pages=181&rft.place=Estados+Unidos&rft.pub=PublicAffairs&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="Ligações_externas"><span id="Liga.C3.A7.C3.B5es_externas"></span>Ligações externas</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=N%C3%BAmero_CAS&veaction=edit&section=2" title="Editar secção: Ligações externas" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=N%C3%BAmero_CAS&action=edit&section=2" title="Editar código-fonte da secção: Ligações externas"><span>editar código-fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="metadata mbox-small" style="border:1px solid #aaa; background-color: var(--background-color-neutral-subtle, #f9f9f9); color:inherit;"> <tbody><tr> <td class="mbox-image"><span typeof="mw:File"><a href="http://data.wikipedia.org/wiki/Special:Search/N%C3%BAmero_CAS" title="Busca Wikidata"><img alt="Busca Wikidata" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/40px-Wikidata-logo.svg.png" decoding="async" width="40" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/60px-Wikidata-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Wikidata-logo.svg/80px-Wikidata-logo.svg.png 2x" data-file-width="1050" data-file-height="590" /></a></span></td> <td class="mbox-text" style=""><a href="/wiki/Wikidata" title="Wikidata">Wikidata</a> tem uma propriedade, <i><b><a href="https://www.wikidata.org/wiki/Property:P231" class="extiw" title="d:Property:P231">P231</a></b></i>,<br />para Número CAS (veja <a href="https://www.wikidata.org/wiki/Special:WhatLinksHere/Property:P231" class="extiw" title="d:Special:WhatLinksHere/Property:P231">usos</a>)</td> </tr> </tbody></table> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20061011233539/http://www.cas.org/EO/regsys.html">Descrição do registro CAS</a> (em inglês)</li> <li><a rel="nofollow" class="external text" href="http://chemfinder.cambridgesoft.com/">chemfinder</a> (em inglês)</li></ul> <table class="noprint" style="border-top:none; border-bottom:none; background:transparent; color: inherit"><tbody><tr> <td style="text-align: center;"><span typeof="mw:File"><a href="/wiki/Ficheiro:Farm-Fresh_flask.png" class="mw-file-description"><img alt="Ícone de esboço" src="//upload.wikimedia.org/wikipedia/commons/thumb/2/21/Farm-Fresh_flask.png/30px-Farm-Fresh_flask.png" decoding="async" width="30" height="30" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/2/21/Farm-Fresh_flask.png 1.5x" data-file-width="32" data-file-height="32" /></a></span></td> <td><i>Este artigo sobre <a href="/wiki/Qu%C3%ADmica" title="Química">Química</a> é um <a href="/wiki/Wikip%C3%A9dia:Esbo%C3%A7o" title="Wikipédia:Esboço">esboço</a>. Você pode ajudar a Wikipédia <b><span class="plainlinks"><a class="external text" href="https://pt.wikipedia.org/w/index.php?title=N%C3%BAmero_CAS&action=edit">expandindo-o</a></span></b>.</i></td> </tr></tbody></table> <ul class="noprint navigation-box" style="border-top: solid silver 1px; border-right: solid silver 1px; border-bottom:1px solid silver; border-left: solid silver 1px; padding:3px; background-color: #F9F9F9; text-align: center; margin-top:10px; margin-left: 0; clear: both;"><li style="display: inline;"><span style="white-space: nowrap; margin: auto 1.5em"><span style="margin-right: 0.5em"><span typeof="mw:File"><a href="/wiki/Ficheiro:Sciences_exactes.svg" title="Portal da química"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/Sciences_exactes.svg/25px-Sciences_exactes.svg.png" decoding="async" width="25" height="25" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/37/Sciences_exactes.svg/38px-Sciences_exactes.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/37/Sciences_exactes.svg/50px-Sciences_exactes.svg.png 2x" data-file-width="256" data-file-height="256" /></a></span></span> <span style="font-weight:bold"><a href="/wiki/Portal:Qu%C3%ADmica" title="Portal:Química">Portal da química</a></span></span></li> </ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Obtida de "<a dir="ltr" href="https://pt.wikipedia.org/w/index.php?title=Número_CAS&oldid=68568384">https://pt.wikipedia.org/w/index.php?title=Número_CAS&oldid=68568384</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categorias" title="Especial:Categorias">Categoria</a>: <ul><li><a href="/wiki/Categoria:Seguran%C3%A7a_qu%C3%ADmica" title="Categoria:Segurança química">Segurança química</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorias ocultas: <ul><li><a href="/wiki/Categoria:!CS1_ingl%C3%AAs-fontes_em_l%C3%ADngua_(en)" title="Categoria:!CS1 inglês-fontes em língua (en)">!CS1 inglês-fontes em língua (en)</a></li><li><a href="/wiki/Categoria:!Esbo%C3%A7os_maiores_que_1000_bytes" title="Categoria:!Esboços maiores que 1000 bytes">!Esboços maiores que 1000 bytes</a></li><li><a href="/wiki/Categoria:!Esbo%C3%A7os_sobre_qu%C3%ADmica" title="Categoria:!Esboços sobre química">!Esboços sobre química</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Esta página foi editada pela última vez às 14h10min de 3 de setembro de 2024.</li> <li id="footer-info-copyright">Este texto é disponibilizado nos termos da licença <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.pt">Atribuição-CompartilhaIgual 4.0 Internacional (CC BY-SA 4.0) da Creative Commons</a>; pode estar sujeito a condições adicionais. 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