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. 2016 Mar 8;124(8):1155–1165. doi: 10.1289/ehp.1510529

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Example of homonymy in chemical naming. Chemical homonymy occurs when the same name can refer to different chemicals. Terpineol, its stereoisomers, and its sodium salt each have a different CID in PubChem but share common synonyms. Therefore, the same chemical name can match more than one PubChem CID. These images were taken from PubChem ( Kim et al. 2016).