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Propyl Gallate Commercial Pure & BP Ph Eur USP NF FCC Food Grade Manufacturers Suppliers, India
Anmol Chemicals are manufacturers of Specialty Chemicals and Pharmaceutical Excipients, in India. Anmol Chemicals Group has manufacturing facilities spread across India, representatives in Houston Chicago USA and toll manufacturers in China. We make IP, BP, USP, Ph Eur, FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade and Pure Grades of various chemicals. All our items are analyzed to meet the required standards.
Our manufacturing facility is FDA GMP approved and ISO-9001, ISO 14000, OHSAS 18000, ISO 22000, FSSAI HACCP certified. We are offering products manufactured as per Kosher and Halal approved method. We are registered with "Reach" for export to European countries.
CAS No.: 121-79-9, EC Code EINECS: 204-498-2, Molecular Weight: 212.2, Chemical Formula: C10H12O5
Propyl Gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. Since 1948, this antioxidant has been added to foods containing oils and fats to prevent oxidation. As a food additive, it is used under the E number E310. Propyl gallate is an antioxidant. It protects against oxidation by hydrogen peroxide and oxygen free radicals. Propyl gallate is used to protect oils and fats in products from oxidation; it is used in foods, cosmetics, hair products, adhesives, and lubricants. Propyl Gallate is a generally recognized as safe (GRAS) antioxidant to protect fats, oils, and fat-containing food from rancidity that results from the formation of peroxides.
Propyl Gallate USP NF Grade Specifications
C10H12O5 --- 212.20 --- CAS 121-79-9.
Benzoic acid, 3,4,5-trihydroxy-, propyl ester.
Propyl Gallate contains not less than 98.0 percent and not more than 102.0 percent of C10H12O5, calculated on the dried basis.
Identification:
A: Infrared Absorption 197M .
B: Ultraviolet Absorption 197U
Solution: 10 3g per mL.
Medium: methanol.
Melting range: between 146 and 150 .
Loss on drying: Dry it at 105 for 4 hours: it loses not more than 0.5% of its weight.
Residue on ignition: not more than 0.1%.
Heavy metals: 0.001%.
Assay: Transfer about 100 mg of Propyl Gallate, accurately weighed, to a 250-mL volumetric flask, dissolve in about 100 mL of methanol, dilute with methanol to volume, and mix. Transfer 5.0 mL of this solution to a 200-mL volumetric flask, dilute with methanol to volume, and mix. Concomitantly determine the absorbances of this solution and a Standard solution of USP Propyl Gallate RS in methanol having a known concentration of about 10 micro gm per mL, in 1-cm cells at the wavelength of maximum absorbance at about 273 nm, with a suitable spectrophotometer, using methanol as the blank. Calculate the quantity, in mg, of C10H12O5 in the portion of Propyl Gallate taken by the formula:
10C(AU / AS)
in which C is the concentration, in microgm per mL, of USP Propyl Gallate in the Standard solution, and AU and AS are the absorbances of the solution of Propyl Gallate and the Standard solution, respectively.
Propyl Gallate FCC Food Grade Specifications
Gallic Acid, Propyl Ester
C10H12O5 Formula wt 212.20
INS: 310 CAS: 121-79-9
DESCRIPTION
Propyl Gallate occurs as a fine, white to nearly white powder. It is slightly soluble in water and freely soluble in alcohol and in ether.
Function: Antioxidant.
Identification: Place about 5 g of sample and several boiling chips into a 500-mL round-bottom flask, connect a water-cooled condenser to the flask, and introduce a steady stream of nitrogen into the flask, maintaining the flow of nitrogen at all times during the remainder of the procedure. Pour 100 mL of 1 N sodium hydroxide through the top of the condenser, heat the solution to boiling, boil for 30 min, and cool. Place the round-bottom flask in an ice bath, and slowly, with occasional swirling, add dilute sulfuric acid (10%) until a pH of 2 to 3 is obtained (using pH paper). Filter the precipitate through a sintered-glass crucible, wash with a minimum amount of water, and dry at 110C for 2 h. The gallic acid so obtained melts at about 240C with decomposition.
Assay: Not less than 98.0% and not more than 102.0% of C10H12O5 after drying.
Lead: Not more than 1 mg/kg.
Loss on Drying: Not more than 0.5%.
Melting Range: Between 146C and 150C.
Residue on Ignition: Not more than 0.1%.
Propyl Gallate BP Grade
Ph Eur --- C10H12O5 --- 212.2 --- CAS 121-79-9
Action and use: Antioxidant.
DEFINITION
Propyl gallate contains not less than 97.0 per cent and not more than the equivalent of 103.0 per cent of propyl 3,4,5-trihydroxybenzoate, calculated with reference to the dried substance.
CHARACTERS
A white or almost white, crystalline powder, very slightly soluble in water, freely soluble in ethanol (96 per cent). It dissolves in dilute solutions of alkali hydroxides.
IDENTIFICATION
First identificationıB.
Second identificationıA, C, D.
A. Melting point: 148C to 151C.
B. Examine by infrared absorption spectrophotometry.
C. Examine the chromatograms obtained in the test for gallic acid.
D. Dissolve about 10 mg in 10 ml of water by heating to about 70C. Cool and add 1 ml of bismuth subnitrate solution. A bright yellow precipitate is formed.
TESTS
Appearance of solution: Dissolve 1.0 g in ethanol (96 per cent) and dilute to 20 ml with the same solvent. The solution is clear and not more intensely coloured than reference solution.
Gallic acid: Examine by thin-layer chromatography.
Total chlorine: Mix 0.5 g with 2 g of calcium carbonate. Dry and ignite at 700 ± 50C. Take up the residue with 20 ml of dilute nitric acid and dilute to 30 ml with water. 15 ml of the solution, without further addition of dilute nitric acid, complies with the limit test for chlorides (200 ppm).
Chlorides: To 1.65 g add 50 ml of water. Shake for 5 min. Filter. 15 ml of the filtrate complies with the limit test for chlorides (100 ppm).
Zinc: Not more than 25.0 ppm of Zn, determined by atomic absorption spectrometry
Heavy metals: 2.0 g complies with limit test C for heavy metals (10 ppm). Prepare the reference solution using 2 ml of lead standard solution (10 ppm Pb).
Loss on drying: Not more than 0.5 per cent, determined on 1.000 g by drying in an oven at 105C.
Sulphated ash: Not more than 0.1 per cent, determined on 1.0 g.
ASSAY
Dissolve 0.100 g in methanol and dilute to 250.0 ml with the same solvent. Dilute 5.0 ml of the solution to 200.0 ml with methanol. Measure the absorbance at the absorption maximum at 275 nm.
Calculate the content of C10H12O5 taking the specific absorbance to be 503.
STORAGE
Protected from light.
IMPURITIES
Specified impurities 3,4,5-trihydroxybenzoic acid (gallic acid).
Manufacturers
ANMOL CHEMICALS
S-8, SARIFA MANSION, 2ND PRINCIPAL SHAIKH HASAN MARG, MUMBAI 400009, INDIA
TEL: (OFF) 91-22-23726950, 23774610, 23723564. FAX: 91-22-23728264
e-mail: info@anmol.org
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Calcium Hydroxide ---------- Calcium Acetate ------ Calcium Butyrate
Calcium Lactobionate ------- Calcium Levulinate --- Calcium Saccharate
Carbamide Peroxide --------- Citric Acid ---------- Calcium Phosphate
Calcium Oxide -------------- Calcium Sulfate ------ Chromic Chloride
Cupric Chloride ------------ Ferric Chloride ------ Ferric Nitrate -------
Formaldehyde Solution ------ Fumaric Acid
Gentian Violet ------------- Glacial Acetic Acid
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Magnesium Oxide ------------ Magnesium Chloride --- Magnesium Sulfate
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Oleic Acid ----------------- Octyldodecanol ------- Phenylethyl Alcohol
Potassium Acetate ---- Potassium Carbonate -------- Potassium Hydroxide
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Selenious acid
Sodium Molybdate ----------- Sodium Perborate ----- Sodium Phosphate
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Sodium Hydroxide ----------- Sodium Chloride ------ Sodium Thiosulfate
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Zinc Sulfate
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Commercial Pure & USP NF BP Ph Eur FCC Food Grade