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class="promo-hero__content">CAS REGISTRY<sup>®</sup>（即 CAS 物质合集）是全球科学家、制造商、监管机构和数据科学家所信赖的化学物质准确信息的权威资源。</p><a href="/zh-hans/contact" class="button w-button">联系我们</a></div></div></div></section><nav aria-label="Breadcrumb" class="section__breadcrumbs"><div class="container-breadcrumbs"><ol typeof="BreadcrumbList" vocab="https://schema.org/" role="list" class="breadcrumbs w-list-unstyled"><li typeof="ListItem" property="itemListElement" class="breadcrumbs__list-item"><a href="/zh-hans" typeof="WebPage" property="item" class="breadcrumbs__item-link w-inline-block"><div property="name" class="breadcrumbs__list-item--text">主页</div></a><meta property="position" content="1"/><div class="breadcrumbs__separator w-embed"><svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M20 8L11 23.5885" stroke="currentColor" stroke-width="1.5"/> </svg></div></li><li typeof="ListItem" property="itemListElement" class="breadcrumbs__list-item"><a 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srcset="https://cdn.prod.website-files.com/650861f00f97fe8153979335/65afdecee777985ebbc748fc_cas-registry-p-500.webp 500w, https://cdn.prod.website-files.com/650861f00f97fe8153979335/65afdecee777985ebbc748fc_cas-registry-p-800.webp 800w, https://cdn.prod.website-files.com/650861f00f97fe8153979335/65afdecee777985ebbc748fc_cas-registry-p-1080.webp 1080w, https://cdn.prod.website-files.com/650861f00f97fe8153979335/65afdecee777985ebbc748fc_cas-registry.webp 1200w" alt=""/></div><div id="w-node-_73c16c7d-e4f0-062e-6d92-e0ec318bf2df-28acadbf" class="grid-layout__text"><h2>什么是 CAS 登记号®</h2><div class="w-richtext"><p>化学物质有许多不同的描述方式，包括分子式、化学结构、通用名、系统命名、常用名和商品名。这种不明确和统一的情况可能会导致失利、延迟，甚至是安全问题。</p><p>CAS 登记号是特定物质的唯一且明确的标识符，可以用于明确的沟通，并在 CAS 科学家的帮助下，将有关该物质的所有可用数据和研究联系在一起。在进行监管申请时，政府机构信赖 CAS 登记号用于物质识别，因为 CAS 登记号是唯一的，易于验证的并且国际认可的标准。</p></div></div></div></div></section><section class="section section-features"><div class="container"><div class="section__header"><h2 class="section__feature-title">功能</h2></div><div class="w-layout-grid grid-column-3"><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd86f65a8514c026cd8bc_CAS_Icons_Final_RGB_Patents.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>Authoritative source for accurate chemical names, structures, and CAS Registry Numbers®.</p></div></div></div><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd879a4fa47615abba4cc_CAS_Icons_Final_RGB_Substance.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>219 million organic substances, alloys, coordination compounds, minerals, mixtures, polymers, and salts disclosed in publications since the early 1800s.</p></div></div></div><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd854521a8c00a67217f1_CAS_Icons_Final_RGB_Biosequences.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>~75 million protein and nucleic acid sequences.</p></div></div></div><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd85dd5abc43d0c0f9fc4_CAS_Icons_Final_RGB_Data%20Standardization.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>Enriched with ~8 billion experimental and predicted property data points and spectra.</p></div></div></div><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd873cf601b34f30e521e_CAS_Icons_Final_RGB_Proven%20Reliability.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>Updated daily with thousands of new substances to alert you to the most recent discoveries.</p></div></div></div><div class="card__feature"><div class="card__feature--left-border"></div><div class="card__feature--content"><div class="card__feature-icon-wrapper"><img src="https://cdn.prod.website-files.com/650861f00f97fe8153979335/662fd85a0af5c3573e1384ec_CAS_Icons_Final_RGB_Content.svg" loading="lazy" width="92" height="92" alt="" class="card__feature-icon"/></div><div class="rich-text_features w-richtext"><p>Linked to relevant publications, reactions, chemical suppliers, formulations, and more, as part of the CAS Content Collection™.</p></div></div></div></div></div></section><section aria-labelledby="faq-heading" itemscope="" itemtype="https://schema.org/FAQPage" class="section faq-section"><div class="container"><div class="faq-header-wrapper"><div class="faq-heading"><div class="faq-heading-subhead">FAQs</div><h2 id="faq-heading" class="faq-heading-title">CAS REGISTRY（物质数据库）与 CAS 登记号常见问题</h2></div><div class="faq-heading--cta-wrapper"><p>Still have a question in mind?<br/>Contact us directly!</p><a href="/zh-hans/contact" class="button w-button">联系我们</a></div></div><div class="w-layout-grid faq-layout"><div class="faq-wrap"><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">什么是 CAS REGISTRY？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p><a href="https://www.cas.org/cas-data/cas-registry">CAS REGISTRY®是最权威的披露化学物质信息的合集。</a></p><p>CAS REGISTRY 收录了从 1957 年至今科学文献中确定的所有物质，还有些物质可追溯到 20 世纪初。</p><p>CAS REGISTRY 每天更新数万种新物质。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">什么是 CAS 登记号 (CAS RN)？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>每个CAS Registry Numbe® (CAS RN®) 代表</p><ul role="list"><li>唯一的数字标识符</li><li>仅分配给一种物质</li><li>没有化学含义</li><li>可以与这个特定化学物质的大量信息相链接</li></ul></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">CAS 登记号是什么样的？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>CAS 登记号是一个数字标识符，包含最多 10 位数字，中间有两个连字符“-”。</p><p>最右边的一位数字是校验码，用于验证登记号的有效性和唯一性。</p><p>例如，58-08-2 是咖啡因的 CAS 登记号。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">CAS 如何分配登记号？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>当一种物质录入到 CAS REGISTRY 数据库时，便会给这种物质分配一个 CAS 登记号。编号按顺序分配给 CAS 科学家确定的独特新物质，并收录到数据库中。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">CAS REGISTRY 收录了哪些类型的化合物？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>CAS REGISTRY 收录了多种类型的物质，包括全球最大的物质合集：</p><ul role="list"><li>有机和无机化合物</li><li>金属和合金</li><li>矿物质</li><li>配位化合物和有机金属</li><li>元素、同位素和核粒子</li><li>蛋白质和核酸</li><li>聚合物</li><li>非结构材料以及成分未知或可变的物质或生物制品 (UVCB)</li></ul></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">CAS 登记号为什么成为了世界标准？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>由于 CAS 登记号不依赖于任何化学命名系统，因此它们可以：</p><ul role="list"><li>在用于描述物质的不同命名之间提供可靠的共同联系</li><li>为科学家、行业和监管机构所用化学物质标识符的国际资源</li></ul></div></div></nav></div></div><div class="faq-wrap"><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">监管机构为什么依赖 CAS 登记号？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>描述化学物质的方式有许多，例如分子式、结构图、系统名称、专有名称或商品名等。</p><p>但 CAS 登记号是唯一的，且仅指一种物质，无论该物质有多少种其他描述方式。</p><p>政府机构认为 CAS 登记号是追踪物质的理想选择，因为 CAS 登记号</p><ul role="list"><li>具有唯一性</li><li>可快速可靠地验证</li><li>受到全球认可</li></ul></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">可以在以下解决方案中找到 CAS 登记号：</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>Find CAS Registry Numbers in:</p><p>广泛应用于 CAS SciFindern 和 STN® 数据库、CAS 出版物和其他来源中，例如：</p><ul role="list"><li>政府监管机构的商业化学品清单</li><li><a href="https://www.cas.org/support/documentation/chemical-substances/info-exchange">部分Elsevier 数据库</a></li><li>手册、指南和技术报告</li><li>其他纸质参考书</li><li>化学品目录</li></ul></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">为什么 CAS REGISTRY 中有些物质没有相关文献？我怎样才能了解这些物质的更多信息呢？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>REGISTRYSM（物质数据库）中的记录表示在 CAS 数据库（CAS References、CAS Reactions、CAS Chemical Supplier Insights、CAS Markush）和其他产品数据库（如 CAS SciFindern 和 STN®）中收录的物质。来源于文献或专利出版物以外的物质可能没有任何文献。 CAS 收录这些物质是为了支持登记政策、化学品库、化学品目录、网络资源、反应数据库和 STN 中未包含的数据集合。</p><p>对于 REGISTRY 中没有任何文献或专利资料的物质，如需了解更多信息，请查询 STN 中的注册来源 (SR) 和物质分类标识符 (CI) 字段。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">我如何获得或申请一个CAS登记号？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>CAS Inventory Expert Service 和 Nomenclature and Registration 为您提供多种方案，用于确认和分配 CAS 登记号并获得 CA 索引名称（CA Index Name）。请注意，这些服务需要付费。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">向CAS申请登记号为什么具有重要意义？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>纸质出版物中的信息可能会过时，而 CAS REGISTRY 数据库每天更新，是为您提供最新 CAS 登记号信息的最佳来源。</p><p>CAS 是 CAS 登记号的授权机构。其他资源可能将化合物与不正确的 CAS 登记号关联起来，如果使用不正确的 CAS 登记号进行检索，您会得到不相关或不正确的信息。</p></div></div></nav></div><div data-hover="false" data-delay="0" aria-labelledby="question1-heading" itemprop="mainEntity" itemscope="" itemtype="https://schema.org/Question" class="faq-item w-dropdown"><div class="faq-item__toggle w-dropdown-toggle"><div class="faq-item-title"><h3 itemprop="name" class="faq-title-content">什么是 CAS 登记号 (CAS RN) 合作伙伴项目？</h3><div class="faq-item__icon-wrap"><div class="faq-item__icon w-embed"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg"> <path d="M8 10L5 7H11L8 10Z" fill="currentColor"/> </svg></div></div></div></div><nav class="faq-item__content w-dropdown-list"><div itemscope="https://schema.org/Answer" itemprop="acceptedAnswer" class="faq-tab"><div itemprop="text" class="w-richtext"><p>如果机构需要将CAS登记号发布给公众或用其支持公共或商业平台的功能，就需要获得CAS登记号许可（CAS Registry Number License）。查看 CAS 登记号合作伙伴项目，了解更多信息。</p></div></div></nav></div></div></div></div></section><section class="section background_blue-grey"><div class="container"><div class="section__header"><h2>CAS Insights 的最新消息</h2></div><div class="insights-cms-items_wrapper w-dyn-list"><div role="list" class="grid-column-3 w-dyn-items"><div role="listitem" class="insights-cms-items_list-item w-dyn-item"><div itemtype="http://schema.org/Article" itemscope="" id="w-node-a20cb0dd-b9df-6a0b-dbc5-c6732757fde8-2757fde8" class="card"><img class="card__image" src="https://cdn.prod.website-files.com/650867962272bf8f15c1034b/67111194cdea08bafca6eb87_GettyImages-2024720440_CAS-Insights-Hero-Image.jpg" width="1024" height="576" alt="" sizes="(max-width: 1439px) 33vw, 480px" property="image" 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