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TOXNET redirects users to other National Library of Medicine products after a broader NLM reorganization. The page explains access routes for toxicology resources including HSDB, LactMed, ChemIDplus, LiverTox and Haz-Map. It states that PubChem serves as NLM's single source for chemical information starting December 2022 and notes that TOXMAP, CTD and Pillbox were retired.