{"id":4332,"date":"2023-10-24T14:07:35","date_gmt":"2023-10-24T12:07:35","guid":{"rendered":"https:\/\/www.em-grade.com\/general-fr\/what-is-the-cas-number\/"},"modified":"2024-02-15T17:21:00","modified_gmt":"2024-02-15T16:21:00","slug":"quest-ce-le-numero-cas","status":"publish","type":"post","link":"https:\/\/www.em-grade.com\/fr\/definitions-de-chimie\/quest-ce-le-numero-cas\/","title":{"rendered":"Qu&rsquo;est-ce le num\u00e9ro CAS ?"},"content":{"rendered":"<p><a href=\"https:\/\/www.acs.org\/content\/acs\/en.html\">L&rsquo;American Chemical Society<\/a> dispose d&rsquo;une division appel\u00e9e <a href=\"https:\/\/www.cas.org\">Chemical Abstracts Service<\/a> (CAS). Ce dernier associe les substances chimiques \u00e0 un num\u00e9ro d&rsquo;enregistrement unique. Il comprend jusqu&rsquo;\u00e0 dix chiffres, regroup\u00e9s en trois cat\u00e9gories et s\u00e9par\u00e9s par des tirets.<\/p>\n<p>Ce num\u00e9ro CAS pr\u00e9sente de nombreux int\u00e9r\u00eats. Tout d&rsquo;abord, il permet de trouver rapidement un produit en tapant ce num\u00e9ro sur une interface de recherche. D&rsquo;autre part, il peut \u00e9galement faciliter la recherche d&rsquo;un produit sur les sites web des distributeurs agr\u00e9\u00e9s. Enfin, il regroupe tous les noms existants (synonymes) pour le m\u00eame produit.<\/p>\n<p>Prenons l&rsquo;exemple de <a href=\"https:\/\/www.em-grade.com\/faq\/\">l&rsquo;imidazole<\/a>. Son num\u00e9ro CAS est 288-32-4. Celui-ci fait r\u00e9f\u00e9rence aux synonymes : 1,3-Diaza-2,4-cyclopentadi\u00e8ne et Glyoxaline.<\/p>\n<p><a href=\"https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/IMG_5902-plzvoz0fi0tg09jf154dp06yiqvdo95lke6s4yg7k4.jpeg\"><img alt=\"\" loading=\"lazy\" decoding=\"async\" class=\"wp-image-1612 size-full\" src=\"https:\/\/www.em-grade.com\/wp-content\/uploads\/2023\/10\/IMG_5902-plzvoz0fi0tg09jf154dp06yiqvdo95lke6s4yg7k4.jpeg\" alt=\"\" width=\"250\" height=\"250\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L&rsquo;American Chemical Society dispose d&rsquo;une division appel\u00e9e Chemical Abstracts Service (CAS). Ce dernier associe les substances chimiques \u00e0 un num\u00e9ro d&rsquo;enregistrement unique. Il comprend jusqu&rsquo;\u00e0 dix chiffres, regroup\u00e9s en trois&#8230;<\/p>\n","protected":false},"author":8,"featured_media":3524,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"itsec_x_frame_options":"","footnotes":""},"categories":[288],"tags":[278],"class_list":["post-4332","post","type-post","status-publish","format-standard","has-post-thumbnail","category-definitions-de-chimie","tag-what-is-the-cas-number-fr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/comments?post=4332"}],"version-history":[{"count":0,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/posts\/4332\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media\/3524"}],"wp:attachment":[{"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/media?parent=4332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/categories?post=4332"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.em-grade.com\/fr\/wp-json\/wp\/v2\/tags?post=4332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}