3-Methylphenol or Meta Cresol USP BP Ph Eur Manufacturers Exporters

Metacresol USP Grade Specifications:
C7H8O --- 108.14
3-Methylphenol;
3-Hydroxytoluene CAS 108-39-4

DEFINITION
Metacresol contains NLT 98.0% and NMT 102.0% of metacresol (C7H8O).

IDENTIFICATION
A. Infrared Absorption
B. The retention time of the major peak of the Sample solution corresponds to that of the Standard solution, as obtained in the Assay.

ASSAY
To pass the test by Chromatography.
Acceptance criteria: 98.0%–102.0%

Organic Impurities:
To pass the test by Chromatography.
Clarity of Solution:
A.
Analysis: Add 10 mL of Metacresol to 10 mL of hexane, and mix.
Acceptance criteria: A clear solution is obtained.
B.
Analysis: Add 1.0 mL of Metacresol to 20 mL of 1 N sodium hydroxide, and mix.
Acceptance criteria: A clear solution is obtained.
Packaging and Storage: Preserve in tight, light-resistant containers.

Specifications of 3-Methylphenol or Meta Cresol BP Ph Eur Grade Show/Hide Details

Metacresol BP Ph Eur Grade Specifications:
C7H8O --- 108.1 --- CAS 108-39-4
Action and use: Antiseptic; antimicrobial preservative.

DEFINITION
3-Methylphenol.

CHARACTERS
Appearance: Colourless or yellowish liquid.
Solubility: Sparingly soluble in water, miscible with ethanol (96 per cent) and with methylene chloride.
Relative density: about 1.03.
Melting point: About 11C.
Boiling point: about 202C.

IDENTIFICATION
Infrared absorption spectrophotometry.

TESTS
Solution S: Dissolve 1.5 g in carbon dioxide-free water and dilute to 100 mL with the same solvent.
Appearance of solution: Freshly prepared solution S is not more opalescent than reference suspension III and not more intensely coloured than reference solution.
Acidity: To 25 mL of solution S add 0.15 mL of methyl red solution. The solution is red. Not more than 0.5 mL of 0.01 M sodium hydroxide is required to change the colour of the indicator to yellow.
Related substances: To pass the test by Gas chromatography.
Residue on evaporation: Maximum 0.1 per cent.
Evaporate 2.0 g to dryness on a water-bath in a fume cupboard and dry at 100C to 05C for 1 h. The residue weighs a maximum of 2 mg.

STORAGE
In an airtight container, protected from light.

CAS Number 108-39-4, 3-Methylphenol or Meta Cresol manufacturers suppliers exporters at:

manufacturer supplier exporter
Aadhunik Industries
Ankleshwar Gujarat & Mumbai, India
TEL: (OFFICE) 91-22-65290104, 91-22-65290105.