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Propyl Gallate CAS 121-79-9

Propyl gallate (PG), also known as propyl gallate, is a synthetic oil-soluble antioxidant. Oil-soluble antioxidants are all phenolic compounds, including butylhydroxyanisole (BHA), dibutylhydroxytoluene (BHT), tert-butylhydroquinone (TBHQ) and so on, which are able to provide hydrogen atoms to combine with free radicals generated from the auto-oxidation of fats and oils, to form a relatively stable structure, and to block the chain auto-oxidation of fats and oils to achieve the purpose of antioxidation.
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  • 121-79-9

Propyl   gallate Basic information
Product Name: Propyl gallate
CAS: 121-79-9
MF: C10H12O5
MW: 212.2
EINECS: 204-498-2
Mol File: 121-79-9.mol
Propyl gallate   Chemical Properties
Melting point 146-149 °C(lit.)
Boiling point 312.03°C (rough estimate)
density 1.21
vapor pressure 0Pa at 20℃
refractive index 1.5140 (estimate)
FEMA 2947 | PROPYL GALLATE
Fp 187℃
storage temp. Store below +30°C.
solubility ethanol: 50 mg/mL
form powder
pka 8.11(at 25℃)
color White to light beige
Odor bland
biological source synthetic
Water Solubility 0.35 g/100 mL (25 ºC)
Merck 147,859
BRN 1877976
InChIKey ZTHYODDOHIVTJV-UHFFFAOYSA-N
LogP 1.8
CAS DataBase Reference 121-79-9(CAS DataBase Reference)
NIST Chemistry Reference Benzoic acid, 3,4,5-trihydroxy-, propylester(121-79-9)
EPA Substance Registry System Propyl gallate (121-79-9)
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