Octyl gallate

Octyl gallate
Structural formula of octyl gallate
Space-filling model of the octyl gallate molecule
Names
IUPAC name
Octyl 3,4,5-trihydroxybenzoate
Other names
E311; Progallin O; n-Ocyl gallate; Stabilizer GA-8; Gallic acid octyl ester; 3,4,5-Trihydroxybenzoic acid octyl ester
Identifiers
1034-01-1 YesY
3D model (Jmol) Interactive image
ChEBI CHEBI:83631 N
ChEMBL ChEMBL277346 N
ChemSpider 55194 N
ECHA InfoCard 100.012.594
EC Number 213-853-0
E number E311 (antioxidants, ...)
PubChem 61253
UNII 079IIA2811 N
Properties
C15H22O5
Molar mass 282.34 g·mol−1
Appearance White solid[1]
Melting point 98 to 101 °C (208 to 214 °F; 371 to 374 K)[1]
Hazards
R-phrases R22-R43[1]
S-phrases S24-S37[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N verify (what is YesYN ?)
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.

Properties

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.

Uses

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).

References

  1. 1 2 3 4 Octyl gallate at chemicalland21.com
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