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Indicator, Reagent, or Diagnostic Aid
gallic acid
Gal·lic ac·id
More Information:
ChemID; DailyMed; PDR
Definitions related to gallic acid:
  • A colorless or slightly yellow crystalline compound obtained from nutgalls. It is used in photography, pharmaceuticals, and as an analytical reagent.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • A hydrolyzable tannin with three additional hydroxyl groups attached at the 3, 4, and 5 positions of the phenyl ring. The chemical structure is C1=C(C=C(C(=C1O)O)O)C(=O)O.
    CRCH Nutrition Terminology
    Cancer Research Center of Hawaii, University of Hawaii, 2021
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