Gallic acid is an organic aromatic compound activated by 3-hydroxyl groups. It is abundant in grapes and leaves of some plants. The acid has excellent antioxidant and medicinal properties and finds uses in many industry verticals.

It is commercially produced by acid hydrolysis of tannin or gallnuts.

Synonym3,4,5-Trihydroxybenzoic acid
Pyrogallol-5-carboxylic acid
CAS no.149-91-7
EINECS no.205-749-9
Molecular formulaC7H6O5
Molecular weight170.12


Gallic acid itself is a drug having antibacterial, antiviral, and antifungal activities.
Intermediates: It is consumed to manufacture
Propyl gallate
Bismuth subgallate
n-Octyl gallate
Dodecyl gallate
Methyl 3,4,5-trihydroxybenzoate
In tanning and leather industries
In making raw material for blue/black ink
As an additive to increase storage time and oxidation resistance of fats and oil
As standard to measure total tannin content in Oak wood powder


AppearanceWhite to creamy white crystalline powder
SolubilitySoluble in hot water, 95% ethanol, and acetone
LOD at 105°C%Max 1.0
ROI%Max 0.1
Sulphate%Max 0.02
Tannic acid and related substances by TLCAny secondary spot with solution (1) is not more intense than the spot obtained with solution (2)
Heavy metalsppmMax 20
ArsenicppmMax 4
Assay on dried basis%Min 99.00

Stored at ambient temperature.

25 kg carboard box with inner liner.

REACH Status
Not registered yet.

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