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Standard standard material Protein analysis reagent Titration standard Forensic and veterinary standards. It is a place for anyone interested in chemical synthesis to come and discuss their successes and failures with specific chemical reactions.
The chemsink database is free to download, alter, and use. It has been built with the intention of aggregating and indexing chemical structures and their associated information into a single searchable repository and making it available to everybody, at no charge. ChemSub Online ChemSub Online is a free web-based database which allows you to retreive information for over , chemical substances of which , include chemical structures.
Common Chemistry This database contains the CAS Registry Number, chemical names both formal and common , molecular formulas, and structures or sequences for chemicals of widespread general public interest. These substances are of global commercial use or importance and have been cited 1, or more times in the CAS databases.
The World's Largest Collection of Chemistry Insights Every day CAS scientists collect and analyze published scientific literature from around the globe, building the highest quality and most up-to-date collection of scientific information in the world. Sourced from thousands of journals and 64 patent authorities as well as technical reports, books, conference proceedings, and dissertations published globally More than 56 million records from publications dating back to the early s, with continuous coverage since English language summaries translated from publications in more than 50 different languages from more than different countries Indexed with standardized CAS Lexicon terminology for enhanced retrieval and search precision Enhanced with cited and citing references, legal status, and direct links to the full-text publications where available Updated daily CAS Reactions The CAS reaction collection provides a current and reliable source of synthetic details sourced from journals, patents, dissertations, and seminal reference works to drive synthesis planning and process optimization.
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