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Reference.org
Chemical Abstracts Service
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<p>Chemical Abstracts Service (CAS) is a division of the <a href="/facts/American_Chemical_Society/Alf3uhaF">American Chemical Society</a>. It is a source of chemical information and is located in <a href="/facts/Columbus,_Ohio/mREa53Ub">Columbus, Ohio</a>, <a href="/facts/United_States/P0sCdLe5">United States</a>. </p>