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.
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Names | |
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Preferred 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
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Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.012.594 |
EC Number |
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E number | E311 (antioxidants, ...) |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C15H22O5 | |
Molar mass | 282.336 g·mol−1 |
Appearance | White solid[1] |
Melting point | 98 to 101 °C (208 to 214 °F; 371 to 374 K)[1] |
Hazards | |
GHS labelling: | |
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Warning | |
H302, H317 | |
P261, P264, P270, P272, P280, P301+P312, P302+P352, P321, P330, P333+P313, P363, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Properties
editOctyl 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 the presence of iron.
Uses
editThis antioxidant is used in numerous 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
edit- ^ a b Octyl gallate at chemicalland21.com