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CAS No 121-79-9 , propyl 3,4,5-trihydroxybenzoate

  • Name: propyl 3,4,5-trihydroxybenzoate
  • Synonyms: propyl 3,4,5-trihydroxybenzoate; Gallic acid; propyl ester; Propyl 3,4,5-trihydroxybenzoate;N-Propyl gallate; Tenox PG; Nipagallin P; Progallin P; 121-79-9;
  • CAS Registry Number:
  • Transport: 25kgs
  • Melting Point: 146-150 ºC
  • Density: 1.363g/cm3
  • Refractive index: 1.5204 (167 C)
  • Water Solubility: 0.35 G/100 ML (25 ºC)
  • Safety Statements: R22;R43
  • Hazard Symbols: Xn: Harmful;
  • HS Code: 29182950
  • EINECS: 204-498-2
  • Molecular Weight: 212.19928
  • InchiKey: ZTHYODDOHIVTJV-UHFFFAOYSA-N
  • InChI: InChI=1S/C10H12O5/c1-2-3-15-10(14)6-4-7(11)9(13)8(12)5-6/h4-5,11-13H,
    2-3H2,1H3
  • Risk Statements: S24;S37
  • Molecular Formula: C10H12O5
  • Molecular Structure:CAS No:121-79-9 propyl 3,4,5-trihydroxybenzoate

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References of propyl 3,4,5-trihydroxybenzoate
Title: Propyl Gallate
CAS Registry Number: 121-79-9
CAS Name: 3,4,5-Trihydroxybenzoic acid propyl ester
Synonyms: n-propyl gallate; gallic acid propyl ester; PG
Trademarks: Progallin P (Nipa); Tenox PG (Eastman)
Molecular Formula: C10H12O5
Molecular Weight: 212.20
Percent Composition: C 56.60%, H 5.70%, O 37.70%
Literature References: Spectrophotometric determn: C. S. Sastry et al., Talanta 29, 917 (1982). Effects on survival of Saccharomyces cerevisiae: V. L. Eubanks, L. R. Beuchat, J. Food Prot. 46, 29 (1983). Antioxidant effectiveness: M. A. Augustin, S. K. Berry, J. Am. Oil Chem. Soc. 60, 105 (1983). Comprehensive review of biological effects and toxicology: J. Am. Coll. Toxicol. 4, 23-64 (1985).
Properties: Crystals, mp 150°. Soly at 25° in water = 0.35 g/100 ml; in alcohol = 103 g/100 g; in ether = 83 g/100 g. Soly in cottonseed oil at 30° = 1.23 g/100 g; in lard at 45° = 1.14 g/100 g. Darkens in the presence of iron and iron salts. Synergic with acids, BHA, BHT. pKa 8.11. Partition coefficient (oleyl alcohol:water) 17. Partition coefficient (octanol:water) 32. pH (0.05% aq soln) 6.3; (0.1% aq soln) 5.9; (0.2% aq soln) 5.7. LD50 in mice, rats, hamsters, rabbits (g/kg): 1.70-3.50, 2.1-7, 2.48, 2.75 orally; LD50 i.p. in rats: 0.38 g/kg (J. Am. Coll. Toxicol.).
Melting point: mp 150°
pKa: pKa 8.11
Log P: Partition coefficient (oleyl alcohol:water) 17; Partition coefficient (octanol:water) 32
Toxicity data: LD50 in mice, rats, hamsters, rabbits (g/kg): 1.70-3.50, 2.1-7, 2.48, 2.75 orally; LD50 i.p. in rats: 0.38 g/kg (J. Am. Coll. Toxicol.)
Use: Antioxidant for cosmetics, foods, fats, oils, ethers, emulsions, waxes, transformer oils.