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Fig. 19 | Journal of Cheminformatics

Fig. 19

From: PubChem chemical structure standardization

Fig. 19

Differences between PubChem-standardized and InChI-derived structures—protonation. Sulfuric acid is the most commonly deposited structure in PubChem. The structures shown in a with their SIDs are normalized to the protonated form of sulfuric acid b by InChI normalization but not by PubChem standardization, which does not alter them at all

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