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Methyl Hydroxybenzoate or Methyl Paraben Manufacturer Exporter BP Ph Eur USP NF FCC Food Grade Manufacturer Exporter
Crystal Clear Products is a manufacturer exporter company manufacturing several chemicals including Methyl Hydroxybenzoate or Methyl Paraben and IP BP Ph Eur USP NF JP ACS AR Analytical Reagent FCC Food Grade, Pharmaceutical Chemicals at best prices. The group has offices and factories in India USA and UAE and toll manufacturers in China and sells to almost every country in the world.
The manufacturing facilities of our partner manufacturers have one or more of FDA-cGMP-GLP certification, ISO-9001 certification, Halal and/or Kosher certification, REACH pre-registration ISO-22000 HACCP. We also allow third party inspection of products offered. We can offer small quantities from laboratory and trial packs to large shipments of container loads of material.
Hazard Statements:
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H335: May cause respiratory irritation.
Signal Word: Warning
Transport Information
DOT USA, TDG Canada & ADR/RID Europe: Not Regulated.
IMDG/IMO: Not dangerous goods.: Not dangerous goods.
IATA/ICAO: Not dangerous goods.: Not dangerous goods.
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Methyl Hydroxybenzoate or Methyl Paraben SDS of Manufacturers
CAS Number 99-76-3 Methyl Hydroxybenzoate or Methyl Paraben, EINECS: 202-785-7, Molecular Weight: 152.15, Chemical Formula: C8H8O3
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.
Methyl Hydroxybenzoate BP Grade Specifications
Methylparaben
Methyl Parahydroxybenzoate, Ph Eur Grade Specifications
C8H8O3 --- 152.1 --- CAS 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.
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%.
Contact for Monograph, Uses, Matnfacturing Process, etc of Methyl Hydroxybenzoate or Methyl Paraben and JP IP BP Ph Eur USP NF FCC Food AR ACS Reagent Grade Manufacturer Supplier Exporter
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Last updated
11/19/2022
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