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Gallic acid

Chemical compound
Gallic acid is a trihydroxybenzoic acid with the formula C₆H₂(OH)₃CO₂H. It is classified as a phenolic acid. It is found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. It is a white solid, although samples are typically... Wikipedia
Formula: C7H6O5
Solubility: soluble in alcohol, ether, glycerol, acetone; negligible in benzene, chloroform, petroleum ether
Molar mass: 170.12 g/mol
3D model (JSmol): Interactive image
Acidity (pKa): COOH: 4.5, OH: 10
log P: 0.70
Melting point: 260 °C (500 °F; 533 K)