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Name:  Gallic acid

Synonyms:  Gallic acid stearyl ester; 3,4,5-Trihydroxybenzoic acid stearyl ester

Molecular Formula:C25H42O5

Molecular Weight:422.60

CAS Registry Number:10361-12-3

Gallic acid is an organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants. The chemical formula is C6H2(OH)3COOH. Gallic acid is found both free and as part of tannins. Salts and esters of gallic acid are termed gallates. Despite its name, it does not contain gallium.


Product name Gallic acid
Molar mass 170.12 g/mol
Appearance White, yellowish-white, or pale fawn-colored crystals.
Density 1.7 g/cm3 (anhydrous)
Melting point 250 °C, 523 K, 482 °F
Solubility in water 1.1 g/100 ml water @ 20° C
MSDS External MSDS



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