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Propyl gallate

Propyl gallate
IUPAC name propyl 3,4,5-trihydroxybenzoate
Other names Gallic acid, propyl ester
N-propyl gallate
CAS number 121-79-9
PubChem 4947
EINECS number 204-498-2
MeSH Propyl+Gallate
Molecular formula C10H12O5
Molar mass 212.20 g/mol
Appearance White crystalline powder
Melting point

150 °C

Boiling point


Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Propyl gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. It is an antioxidant added to foods containing oils and fats to prevent oxidation.[citation needed] As a food additive, it is used under the E number E310.

Additional recommended knowledge


Propyl gallate is an anti-oxidant. It protects against oxidation by hydrogen peroxide and oxygen free radicals, in a catalytic manner similar to superoxide dismutase.


Propyl gallate is used to protect oils and fats in products from oxidation.

It is used in foods, cosmetics, hair products, adhesives, and lubricants.


    This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Propyl_gallate". A list of authors is available in Wikipedia.
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