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Propyl gallate

Propyl gallate
Structural formula of propyl gallate
Space-filling model of the propyl gallate molecule
Names
IUPAC name
Propyl 3,4,5-trihydroxybenzoate
Other names
Gallic acid, propyl ester
n-Propyl gallate
E310
Identifiers
121-79-9 YesY
3D model (Jmol) Interactive image
ChEMBL ChEMBL7983 YesY
ChemSpider 4778 YesY
ECHA InfoCard 100.004.090
EC Number 204-498-2
E number E310 (antioxidants, ...)
MeSH Propyl+Gallate
PubChem 4947
UNII 8D4SNN7V92 YesY
Properties
C10H12O5
Molar mass 212.20 g/mol
Appearance White crystalline powder
Melting point 150 °C (302 °F; 423 K)
Boiling point Decomposes
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
YesY  (what is YesYN ?)
Infobox references

Propyl gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. Since 1948, this antioxidant has been added to foods containing oils and fats to prevent oxidation. As a food additive, it is used under the E number E310.

Propyl gallate is an antioxidant. It protects against oxidation by hydrogen peroxide and oxygen free radicals.

Propyl gallate is used to protect oils and fats in products from oxidation; it is used in foods, cosmetics, hair products, adhesives, and lubricants.

It is used as a triplet state quencher and an antioxidant in fluorescence microscopy.

A 1993 study in rodents found a correlation between ingestion of propyl gallate and carcinogenesis.

A 2009 study found that propyl gallate acts as an estrogen antagonist.


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