Food Additives

 

Attribute	Details
Chemical Name	Propyl Gallate
Synonyms	PG, 3.4.5-Trihydroxybenzoic acid propyl ester
CAS Number	121-79-9
Formula	C10H12O5
Molecular Weight	212.199 g/mol
Appearance	White to light yellowish crystalline powder
Melting Point	146-150°C
Boiling Point	448.6°C at 760 mmHg
Density	Approximately 1.4 g/cm³
Solubility	Slightly soluble in water, soluble in hot water, ethanol, ether, etc.
Function	Food antioxidant
Applications	Used in edible oils, fats, fried foods, dried fish products, bakery goods, and canned meats
Safety	Low toxicity; ADI (Acceptable Daily Intake) set by FAO/WHO
Stability	Sensitive to heat and light; may decompose at melting point
Production Method	Synthesized through esterification of gallic acid with propyl alcohol

Propyl Gallate (PG), also known as 3.4.5-Trihydroxybenzoic acid propyl ester, is a commonly used food antioxidant. With a CAS number of 121-79-9 and a molecular weight of 212.199 g/mol, it appears as a white to light yellowish crystalline powder. It has a melting point of 146-150°C and a boiling point of 448.6°C at 760 mmHg. Propyl Gallate is slightly soluble in water but soluble in hot water, ethanol, ether, and other solvents.

As a food antioxidant, Propyl Gallate is widely used in edible oils, fats, fried foods, dried fish products, bakery goods, canned meats, and other foods. It is approved for use by the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO), with an Acceptable Daily Intake (ADI) set by these organizations. However, it is sensitive to heat and light and may decompose at its melting point. Propyl Gallate is synthesized through the esterification of gallic acid with propyl alcohol.

20+ years export experience. If you're ready to take the next step or Request Free Samples, Leave your message below and we’ll reply soon.