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Methyl Hydroxybenzoate or Methyl Paraben USP NF BP Ph Eur FCC Food 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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Methyl Hydroxybenzoate or Methyl Paraben SDS of Manufacturers

Methyl Hydroxybenzoate or Methyl Paraben Manufacturers

Synonyms: ----
CAS Number: 99-76-3, Molecular Weight: 152.15, Chemical Formula: C8H8O3, EINECS EC Number: 202-785-7, FEMA: ----,

Methylparaben, also methyl paraben, one of the parabens, is a preservative with the chemical formula CH3(C6H4(OH)COO). It is the methyl ester of p-hydroxybenzoic acid. It is also used as a food preservative and has the E number E218.

Methyl Hydroxybenzoate BP Grade
Methylparaben
Methyl Parahydroxybenzoate, Ph Eur

C8H8O3 --- 152.1 --- 99-763-3
Action and use: Antimicrobial preservative.

DEFINITION
Methyl 4-hydroxybenzoate.
Content: 98.0 per cent to 102.0 per cent.

CHARACTERS
Appearance: White or almost white, crystalline powder or colourless crystals.
Solubility: Very slightly soluble in water, freely soluble in alcohol and in methanol.

IDENTIFICATION
First identification A, B.
Second identification A, C, D.
A. Melting point: 125C to 128C.
B. Infrared absorption spectrophotometry. Comparison methyl parahydroxybenzoate CRS.
C. Examine the chromatograms obtained in the test for related substances.
Results: 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 (b).
D. To about 10 mg in a test-tube add 1 ml of sodium carbonate solution, boil for 30 s and cool (solution A). To a further 10 mg in a similar test-tube add 1 ml of sodium carbonate solution; the substance partly dissolves (solution B). Add at the same time to solution A and solution B 5 ml of aminopyrazolone solution and 1 ml of potassium ferricyanide solution and mix. Solution B is yellow to orange-brown. Solution A is orange to red, the colour being clearly more intense than any similar colour which may be obtained with solution B.

TESTS
Solution S: Dissolve 1.0 g in alcohol and dilute to 10 ml with the same solvent.
Appearance of solution: Solution S is clear and not more intensely coloured than reference solution.
Acidity: To 2 ml of solution S add 3 ml of alcohol, 5 ml of carbon dioxide-free water and 0.1 ml of bromocresol green solution. Not more than 0.1 ml of 0.1 M sodium hydroxide is required to change the colour of the indicator to blue.
Related substances: To pass the test (0.5 per cent).
Sulphated ash: Maximum 0.1 per cent, determined on 1.0 g.

ASSAY
To 1.000 g add 20.0 ml of 1 M sodium hydroxide. Heat at about 70C for 1 h. Cool rapidly in an ice bath. Prepare a blank in the same manner. Carry out the titration on the solutions at room temperature. Titrate the excess sodium hydroxide with 0.5 M sulphuric acid , continuing the titration until the second point of inflexion and determining the end-point potentiometrically.
1 ml of 1 M sodium hydroxide is equivalent to 152.1 mg of C8H8O3.

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.


Methyl Hydroxybenzoate or Methylparaben USP NF and FCC Food Grade is also offered.

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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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Methyl Hydroxybenzoate
Methyl Paraben BP Ph Eur USP NF FCC Food Grades Manufacturers
Methyl Hydroxybenzoate or Methyl Paraben