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Methyl Hydroxybenzoate or Methylparaben USP NF FCC Food Grade Supplier Exporter Manufacturers' Representative |
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Methyl Hydroxybenzoate or Methylparaben or Methyl Paraben
CAS Number: 99-76-3
Molecular Formula: C8H8O3
Molecular Weight: 152.15
Methyl Hydroxybenzoate or Methylparaben
Specifications of Methylparaben USP NF Grade:
C8H8O3 --- 152.15
Benzoic acid, 4-hydroxy-, methyl ester.
Methyl p-hydroxybenzoate --- CAS 99-76-3.
Methylparaben contains not less than 98 percent and not more than 102 percent of C8H8O3.
Identification:A: Infrared Absorption.
B: Melting range: between 125 and 128.
Color of solution: Dissolve 1 g in alcohol, dilute with alcohol to 10 mL, and mix (Methylparaben solution). This solution is clear and not more intensely colored than alcohol or a solution prepared immediately before use by mixing 2.4 mL of ferric chloride, 1.0 mL of cobaltous chloride and 0.4 mL of cupric sulfate with 0.3 N hydrochloric acid to make 10 mL and diluting 5 mL of this solution with 0.3 N hydrochloric acid to make 100 mL. Make the comparison by viewing the solutions downward in matched color-comparison tubes against a white surface.
Acidity: To 2 mL of Methylparaben solution prepared in the Color of solution test add 3 mL of alcohol, 5 mL of carbon dioxide-free water and 0.1 mL of bromocresol green and titrate with 0.10 N sodium hydroxide: not more than 0.1 mL is required to produce a blue color.
Residue on ignition: not more than 0.1%, determined on 1.0 g.
Related substances: To pass the test.
Specifications of Methylparaben FCC Food Grade Specifications:
Methyl p-Hydroxybenzoate
HO COOCH3
C8H8O3 --- Formula weight: 152.15
INS: 218 CAS: 99-76-3
DESCRIPTION
Methylparaben occurs as small, colorless crystals or as a white, crystalline powder. One gram dissolves in about 400 mL of water at 25C, in about 50 mL of water at 80C, in about 2.5 mL of alcohol, in about 7 mL of ether, and in about 4 mL of propylene glycol. It is slightly soluble in glycerin and in fixed oils.
Function: Preservative; antimicrobial agent.
REQUIREMENTS
Identification: Dissolve 500 mg of sample in 10 mL of 1 N sodium hydroxide, boil for 30 min, allow the solution to evaporate to a volume of about 5 mL, and cool. Acidify the solution with 2 N sulfuric acid, collect the crystals on a filter, wash several times with small portions of water, and dry in a desiccator over silica gel. The p-hydroxybenzoic acid so obtained melts between 212C and 217C.
Assay: Not less than 99.0% and not more than 100.5% of C8H8O3, calculated on the dried basis.
Acidity: Passes test.
Lead: Not more than 2 mg/kg.
Loss on Drying: Not more than 0.5%.
Melting Range: Between 125C and 128C.
Residue on Ignition: Not more than 0.05%.
We also supplyMethyl Hydroxybenzoate or Methylparaben or Methyl Paraben BP Ph Eur Grade.
Please visit SDS Safety Data Sheet of Methyl Hydroxybenzoate or Methylparaben or Methyl Paraben Suppliers.
American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.
Suppliers and Manufacturers' Representative:
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Houston, TX 77040, USA
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