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CAS, a division of the American Chemical Society, is pleased to announce that it will contribute to the Wikipedia project. CAS will work with Wikipedia to help provide accurate CAS Registry Numbers ® for current substances listed in Wikiprojects-Chemicals section of the Wikipedia Chemistry Portal that are of widespread general public interest.
Different CAS Registry Numbers [1] are used for each form of a substance. For example, something simple like alanine will have one CAS# for the D form, another for L, another for "unspecified" and a fourth one for racemic. There would be another four CAS#s for the hydrochloride, four for the (1:1) sulfate, four for the (2:1)sulfate, etc.
According to CAS, his visionary view of CAS' potential "led to expansion, modernization, and the forging of international alliances with other information organizations." [15] CAS was an early leader in the use of computer technology to organize and disseminate information. [16] The CAS Chemical Registry System was introduced in 1965.
Tornadoes of 2021. List of United States tornadoes in January 2021. An EF3 tornado hits Fultondale, Alabama, killing one person and injuring 30 others. Health and environment. COVID-19 pandemic. COVID-19 pandemic in North America. COVID-19 pandemic in the United States. COVID-19 vaccination in the United States
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Wisconsin confirms their first cases of the Lineage P.1 and 501.V2 variant of SARS-CoV-2. (Madison.com) COVID-19 pandemic in Arizona, 501.V2 variant. Arizona reports its first case of the 501.V2 variant, which was originally detected in South Africa. (The Arizona Republic) COVID-19 pandemic in Maine, Lineage P.1
Reaxys is a web-based tool for the retrieval of information about chemical compounds and data from published literature, including journals and patents. The information includes chemical compounds, chemical reactions, chemical properties, related bibliographic data, substance data with synthesis planning information, as well as experimental procedures from selected journals and patents.
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