A phenolic antioxidant
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Propyl Gallate

Item No. 22293

Technical Information
Formal Name
3,4,5-trihydroxy-benzoic acid, propyl ester
CAS Number
121-79-9
Synonyms
  • Antioxidant PG
  • NSC 2626
  • PG
  • n-Propyl 3,4,5-trihydroxybenzoate
Molecular Formula
C10H12O5
Formula Weight
Purity
≥98%
A crystalline solid
DMF: 25 mg/mlDMF:PBS(pH7.2) (1:2): 0.33 mg/mlDMSO: 15 mg/mlEthanol: 10 mg/ml
λmax
273 nm
SMILES
OC1=C(O)C(O)=CC(C(OCCC)=O)=C1
InChi Code
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
InChi Key
ZTHYODDOHIVTJV-UHFFFAOYSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Propyl gallate is an antioxidant with antimicrobial activity. It is hepatoprotective in vitro and in vivo, preventing CCl4 induced lipoperoxidation and reduction in polysomes in rat liver.1,2 Propyl gallate (100 mg/kg, i.p.) increases expression of HIF-1α, EPO, and VEGF mRNA levels and the number of normal neurons in rat brains after 8 minutes of forebrain ischemia.3 Propyl gallate in combination with potassium sorbate is bactericidal and bacteriostatic against S. aureus strains known to produce enterotoxins in food.4 Propyl gallate is commonly added to foods to prevent autoxidation and microbial growth.

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Gravela, E., and Dianzani, M.U. Studies on the mechanism of CCl4-induced polyribosomal damage. FEBS Lett. 9(2), 93-96 (1970).

    2. Gravela, E., Gabriel, L., and Ugazio, G. Protection by glutathione and propyl gallate on the impaired in vitro amino acid incorporation into liver microsomal protein of CCL4 -poisoned rats. Biochem. Pharmacol. 20(8), 2065-2070 (1971).

    3. Kawano, Y., Kawaguchi, M., Hirota, K., et alEffects of n-propyl gallate on neuronal survival after forebrain ischemia in rats. Resuscitation 83(2), 249-252 (2012).

    4. Fung, D.Y.C., Lin, C.C.S., and Gailani, M.B. Effect of phenolic antioxidants on microbial growth. Crit. Rev. Microbiol. 12(2), 153-183 (1985).