Propyl gallate

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Propyl gallate 121-79-9  Propyl 3,4,5-trihydroxybenzoate

Propyl gallate CAS 121-79-9

Propyl 3,4,5-trihydroxybenzoate; 3,4,5-Trihydroxybenzoic acid propyl ester CAS 121-79-9

CAS 121-79-9

Name:    Propyl gallate
Synonyms:    Propyl gallate,3,4,5-Trihydroxybenzoic acid propyl ester, Tenox PG;Propyl gallate 3g [121-79-9];Propyl Gallate (200 mg)G2D2031.000mg/mg(dr);Propyl Gallate (200 mg);Propyl Gallate, USP;Propyl gallate, 98% 100GR;n-Propyl Gallate (Ph. Eur.) pure, pharma grade;Propyl gallat
CAS:    121-79-9
MF:    C10H12O5
MW:    212.2
EINECS:    204-498-2
Product Categories:    FINE Chemical & INTERMEDIATES;Antioxidant;-;Food additive,Antioxidant anticorrosive;Biochemistry;Chemistry;Pyridines
Mol File:    121-79-9.mol
Propyl gallate Structure
Propyl gallate Chemical Properties
Melting point     146-149 °C(lit.)
Boiling point     312.03°C (rough estimate)
density     1.210
refractive index     1.5140 (estimate)
FEMA     2947 | PROPYL GALLATE

Propyl 3,4,5-trihydroxybenzoate; n-Propyl gallate; Gallic acid n-propyl ester; n-Propyl 3,4,5-trihydroxybenzoate; 3,4,5-Trihydroxybenzoic acid propyl ester; Gallic acid propyl ester; nipa 49; nipagallin p; n-propyl ester of 3,4,5-trihydroxybenzoic acid; Progallin P; Tenox PG
CAS RN.:     
121-79-9
EINECS:     204-498-2
 Propyl Gallate is a known inhibitor of Tyrosinase, a polyphenol oxidase, which is an important enzyme in pigment biosynthesis in various organisms. It has also recently been seen to boost biodiesel lipid biosynthesis in cultures.
Appearance & Physical State     white granular
Density     1.363g/cm3
Boiling Point     448.6ºC at 760 mmHg
Melting Point     146-150ºC
Flash Point     181.3ºC
Refractive Index     1.5204 (167ºC)
Water Solubility     0.35 g/100 mL (25 ºC)
Stability     Stable under normal temperatures and pressures.
Storage Condition     0-6ºC
Safety Info
RTECS     LW8400000
Safety Statements     S24-S37
HS Code     29182950

Fp     187℃
storage temp.     0-6°C
solubility     ethanol: 50 mg/mL
form     powder
pka    8.11(at 25℃)
color     White to light beige
Water Solubility     0.35 g/100 mL (25 ºC)
Merck     14,7859
BRN     1877976
InChIKey    ZTHYODDOHIVTJV-UHFFFAOYSA-N
CAS DataBase Reference    121-79-9(CAS DataBase Reference)
NIST Chemistry Reference    Benzoic acid, 3,4,5-trihydroxy-, propyl ester(121-79-9)
Safety Information
Hazard Codes     Xn
Risk Statements     22-43-36/37/38
Safety Statements     24-37-36-26
WGK Germany     2
RTECS     LW8400000
TSCA     Yes
HS Code     29182950

 MSDS Information

Propyl gallate Usage And Synthesis

Chemical Properties    white to light beige crystalline powder
Chemical Properties    Propyl gallate is a white, odorless or almost odorless crystalline powder, with a bitter astringent taste that is not normally noticeable at the concentrations employed as an antioxidant.
Uses    Propyl Gallate is an antioxidant that is the n-propylester of 3,4,5-tri- hydroxybenzoic acid. natural occurrence of propyl gallate has not been reported. it is commercially prepared by esterification of gallic acid with propyl alcohol followed by distillation to remove excess alcohol.
Uses    propyl gallate is an anti-oxidant with preservative properties.

Propyl gallate Preparation Products And Raw materials
Preparation Products    Isobutyric acid-->1-propanesulfonic acid 3,3'-(hexadecylimino) bisdisodium salt
Raw materials    p-Toluenesulfonic acid-->PARA TOLUENE-->Glycerite-->Ethyl gallate-->phenyl hydrogen sulfate-->ISOPROPANOL, FOR HPLC [SUBSTITUTED BY 34863 RIEDEL]
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