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PubChem
Maryland US
About Seller: PubChem is a complimentary online chemical database developed by the National Library of Medicine (NLM) at the National Institutes of Health (NIH). Established in 2004, the organization is based in Bethesda, Maryland, USA. PubChem offers comprehensive information on chemicals, including chemical structures, physical properties, biological activities, safety & toxicity data, patents, and literature citations. Users can search the database by name, structure, or other identifiers. It is globally recognized as the largest repository of freely accessible chemical information, containing over 150 million substance descriptions, 60 million unique chemical structures, and 225 million biological activity test results.