Fig. 25From: PubChem chemical structure standardizationDifferences between PubChem-standardized and InChI-derived structures—cyclic double bonds. Examples for preference of cyclic double bonds for PubChem standardization. a SID 1462; b SID 70471; c SID 78008. In all cases: (i) InChI-derived structure; (ii) structure after subsequent PubChem standardizationBack to article page