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Propyl gallate

Propyl gallate

IUPAC name	propyl 3,4,5-trihydroxybenzoate
Other names	Gallic acid, propyl ester N-propyl gallate E310
Identifiers
CAS number	121-79-9
PubChem	4947
EINECS number	204-498-2
MeSH	Propyl+Gallate
SMILES	CCCOC(=O)C1=CC(=C(C(=C1)O)O)O
Properties
Molecular formula	C₁₀H₁₂O₅
Molar mass	212.20 g/mol
Appearance	White crystalline powder
Melting point	150 °C
Boiling point	Decomposes
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.

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Description

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.