Octyl gallate

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Octyl gallate
Octyl gallate.png
CAS number 1034-01-1 YesY
PubChem 61253
EC number 213-853-0
Jmol-3D images Image 1
Molecular formula C15H22O5
Molar mass 282.33 g mol−1
Appearance White solid[1]
Melting point 98 to 101 °C (208 to 214 °F; 371 to 374 K)[1]
R-phrases R22-R43[1]
S-phrases S24-S37[1]
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

Octyl gallate is the ester of 1-octanol and gallic acid. As a food additive it is used under the E number E311 as an antioxidant and preservative.


Octyl gallate is a white powder with a characteristic odor. It is very slightly soluble in water and soluble in alcohol. Its solubility in lard is 1.1%. Octyl gallate darkens in presence of iron.


This antioxidant is used in numerous cosmetics and pharmaceutical, cosmetic, and food products such as soaps, shampoos, shaving soaps, skin lotions, deodorants, margarine, and peanut butter.

It is a synergistic antioxidant with butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA).


  1. ^ a b c d Octyl gallate at chemicalland21.com