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Sodium Methylparaben USP NF Sodium Methyl Hydroxybenzoate BP Ph Eur Grade Manufacturers

Anmol Chemicals Group, established in 1976, is the pioneer manufacturer of Specialty chemicals, Pharmaceutical Excipients, Fragrance & Flavor chemicals in India. Anmol Chemicals Group has manufacturing facilities spread across Western India, representatives in Houston Chicago USA and toll manufacturers in China. We also have toll manufacturing units for processing chemicals in a few countries around the world. We make IP, BP, USP, Ph. Eur., FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade, Pure and Technical Grades of various chemicals. All our items are analyzed to meet the required standards.

Our manufacturing facility is FDA approved and cGMP, ISO-9001, ISO-14001, ISO OHSAS 18000, ISO 22000-2005 HACCP, FSSAI, FSSC-22000, certified. Apart from good manufacturing practice, we also follow good laboratory practice. We are offering products manufactured as per Kosher and Halal approved certified method. We are pre-registered with "Reach" for export to European countries. We can give all solid chemical materials as per specified size or shape.

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Sodium Methylparaben or Sodium Methyl Hydroxybenzoate SDS of Manufacturers

Sodium Methylparaben, Sodium Methyl Hydroxybenzoate Manufacturers

Synonyms: Sodium Methyl Parahydroxybenzoate Sodium Methyl Paraben
CAS Number: 5026-62-0, Molecular Weight: 174.13, Chemical Formula: C8H7NaO3, EINECS EC Number: 225-714-1, FEMA: ----,

Sodium methylparaben Sodium Methyl Hydroxybenzoate or Sodium methyl paraben

Sodium methylparaben (sodium methyl para-hydroxybenzoate) is a compound with formula Na(CH3(C6H4COO)O). It is the sodium salt of methylparaben. It is a food additive with the E number E219 which is used as a preservative.

Sodium Methyl Hydroxybenzoate BP Grade
Sodium Methylparaben
Sodium Methyl Parahydroxybenzoate, Ph Eur

C8H7NaO3 --- 174.1 --- 5026-62-0
Action and use: Antimicrobial preservative.

DEFINITION
Sodium methyl parahydroxybenzoate contains not less than 99.0 per cent and not more than the equivalent of 102.0 per cent of sodium 4-(methoxycarbonyl)phenolate, calculated with reference to the anhydrous substance.

CHARACTERS
A white or almost white, crystalline powder, freely soluble in water, sparingly soluble in alcohol, practically insoluble in methylene chloride.

IDENTIFICATION
First identification A, B, E.
Second identification A, C, D, E.
A. Dissolve 0.5 g in 50 ml of water. Immediately add 5 ml of hydrochloric acid. Filter and wash the precipitate with water. Dry under vacuum at 80C for 2 h. The precipitate obtained melts at 125C to 128C.
B. Examine the precipitate obtained in identification test A by infrared absorption spectrophotometry, comparing with the spectrum obtained with methyl parahydroxybenzoate CRS.
C. Examine the chromatograms obtained in the test for related substances. The principal spot in the chromatogram obtained with test solution (b) is similar in position and size to the principal spot in the chromatogram obtained with reference solution (c).
D. To about 10 mg in a test-tube add 1 ml of sodium carbonate solution, boil for 30 s and cool. Add 5 ml of aminopyrazolone solution and 1 ml of potassium ferricyanide solution and mix. An orange to red colour develops.
E. To 1 ml of solution S (see Tests) add 1 ml of water. The solution gives reaction (a) of sodium.

TESTS
Solution S: Dissolve 5.0 g in carbon dioxide-free water prepared from distilled water and dilute to 50 ml with the same solvent.
Appearance of solution: Solution S examined immediately after preparation is clear and not more intensely coloured than reference solution.
pH: Dilute 1 ml of solution S to 100 ml with carbon dioxide-free water. The pH of the solution is 9.5 to 10.5.
Related substances: To pass the test.
Chlorides: To 10 ml of solution S, add 30 ml of water and 1 ml of nitric acid and dilute to 50 ml with water. Shake and filter. Dilute 10 ml of the filtrate to 15 ml with water. The solution complies with the limit test for chlorides (350 ppm). Prepare the standard using 14 ml of chloride standard solution (5 ppm Cl) to which 1 ml of water has been added.
Sulphates: To 25 ml of solution S, add 5 ml of distilled water and 10 ml of hydrochloric acid and dilute to 50 ml with distilled water. Shake and filter. Dilute 10 ml of the filtrate to 15 ml with distilled water. The solution complies with the limit test for sulphates (300 ppm).
Heavy metals: 2.0 g complies with limit test C for heavy metals (10 ppm). Prepare the standard using 2 ml of lead standard solution (10 ppm Pb).
Water: Not more than 5.0 per cent, determined on 0.500 g by the semi-micro determination of water.

ASSAY
Dissolve 0.150 g in 50 ml of anhydrous acetic acid. Titrate with 0.1 M perchloric acid, determining the end-point potentiometrically. 1 ml of 0.1 M perchloric acid is equivalent to 17.41 mg of C8H7NaO3.

IMPURITIES
A. R = H: 4-hydroxybenzoic acid,
B. R = CH2-CH3: ethyl 4-hydroxybenzoate,
C. R = CH2-CH2-CH3: propyl 4-hydroxybenzoate,
D. R = CH2-CH2-CH2-CH3: butyl 4-hydroxybenzoate.


Methylparaben Sodium USP NF Grade
Methylparaben Sodium contains not less than 98.5 percent and not more than 101.5 percent of C8H7NaO3, calculated on the anhydrous basis.
Completeness of solution: One g of it, dissolved in water, meets the requirement.

Identification:
A: Dissolve 0.5 g in 5 mL of water, acidify with hydrochloric acid, and filter the resulting precipitate. Wash the precipitate with water, and dry it over silica gel for 5 hours: the IR absorption spectrum of a mineral oil dispersion of it exhibits maxima only at the same wavelengths as that of a similar preparation of USP Methylparaben.
B:
Ignite about 0.3 g, cool, and dissolve the residue in about 3 mL of 3 N hydrochloric acid. A platinum wire dipped in this solution imparts an intense, persistent yellow color to a nonluminous flame.
pH: between 9.5 and 10.5, in a solution (1 in 1000).
Water: not more than 5.0%.
Chloride: A 0.2-g portion shows no more chloride than corresponds to 0.10 mL of 0.020 N hydrochloric acid (0.035%).
Sulfate: A 0.25-g portion shows no more sulfate than corresponds to 0.30 mL of 0.020 N sulfuric acid (0.12%).
Assay: Gently reflux about 100 mg of Methylparaben Sodium, accurately weighed, with 30 mL of 1 N sodium hydroxide for 30 minutes. Cool, add 25.0 mL of potassium bromate solution (2.78 in 500), 5 mL of potassium bromide solution (1 in 8), and 10 mL of hydrochloric acid, and immediately insert the stopper into the flask. Cool, shake for 15 minutes, and allow to stand for 15 minutes. Quickly add 15 mL of potassium iodide, taking care to avoid the escape of bromine vapor, at once replace the stopper in the flask, and shake vigorously. Rinse the stopper and the neck of the flask with a small quantity of water, and titrate the liberated iodine with 0.1 N sodium thiosulfate, adding 3 mL of starch as the endpoint is approached. [NOTE—About 15 mL is needed.] Perform a blank determination, and note the difference in volumes required. Each mL of the difference in volume of 0.1 N sodium thiosulfate is equivalent to 2.902 mg of C8H7NaO3.

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Manufacturers

ANMOL CHEMICALS
Taloja Mumbai and Ankleshwar Gujarat, INDIA
Representatives in Houston, Chicago and New York, USA
TEL: (OFF) 91-22-23726950, 23774610, 23723564

e-mail: info@anmol.org

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Last updated 15-jan-19

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Sodium Methylparaben
Sodium Methyl Hydroxybenzoate BP Ph Eur USP NF Grades Manufacturers
Sodium Methylparaben, Sodium Methyl Hydroxybenzoate