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Chlorocresol or p-Chlorocresol or PCMC or 4-Chloro-3-methylphenol USP NF 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, Dubai and UAE. 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, 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. We can supply the material in grams for your laboratory trial and in tons for your plant scale jobs.

Our manufacturing facility is FDA approved and cGMP, GLP (FDA) Approved, ISO 9001, ISO 14001, ISO 17025, ISO 45001, ISO 22000, HACCP, FSSAI, FSSC 22000, Halal and Kosher certified. We are registered with "REACH" for export to European countries. Solid materials can be customized for particle size, shape and bulk density. We observe WHO Good Manufacturing Practice and Good Laboratory Practice. We are a STAR Export House and “Authorised Economic Operator” as per Indian customs.

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Chlorocresol SDS of Manufacturers

Chlorocresol Manufacturers

Synonyms: Chlorocresol or p-Chlorocresol or PCMC or 4-Chloro-3-methylphenol
CAS Number: 59-50-7, Molecular Weight: 142.58, Chemical Formula: C7H7ClO or ClC6H3(CH3)OH, EINECS EC Number: 200-431-6, FEMA: ----,

Specifications of Chlorocresol USP NF Grade:
C7H7ClO --- 142.58
Phenol, 4-chloro-3-methyl-;
4-Chloro-m-cresol --- CAS 59-50-7

DEFINITION
Chlorocresol
contains NLT 99.0% and NMT 101.0% of C7H7ClO (4-chloro-3-methylphenol).

IDENTIFICATION
A.
Sample solution: Dissolve 40 mg of Chlorocresol in 10 mL of water.
Analysis: Add 1 drop of ferric chloride TS to the Sample solution.
Acceptance criteria: A blue color develops.
B.
Sample: 50 mg
Analysis: Transfer the Sample to a crucible, add 500 mg of anhydrous sodium carbonate, and mix. Heat the mixture until fused. Cool, add 5 mL of water, and boil. Acidify with 1 mL of nitric acid, filter, and add 1 mL of silver nitrate TS to the filtrate.
Acceptance criteria: A white precipitate is formed.

ASSAY
To pass the test.
Acceptance criteria: 99.0%–101.0%
Melting Range or Temperature: 63C –66C
Limit of Nonvolatile Residue:
Sample: 1.0 g
Analysis: Heat the Sample in a tared crucible on a steam bath until it has evaporated, and dry the residue at 105° for 1 h.
Acceptance criteria: NMT 0.1%
Completeness of Solution:
Sample: 1 g
Analysis: Transfer the Sample to a test tube, add 0.4 mL of alcohol, and shake.
Acceptance criteria: The solution is complete.
Packaging and Storage: Preserve in tight, light-resistant containers.


Specifications of Chlorocresol BP Ph Eur Grade:
C7H7ClO --- 142.6 --- 59-50-7
Action and use: Antiseptic; antimicrobial preservative.

DEFINITION
4-Chloro-3-methylphenol.
Content: 98.0 per cent to 101.0 per cent.

CHARACTERS
Appearance: White or almost white, crystalline powder or compacted crystalline masses supplied as pellets or colourless or white crystals.
Solubility: Slightly soluble in water, very soluble in ethanol (96 per cent), freely soluble in fatty oils. It dissolves in solutions of alkali hydroxides.

IDENTIFICATION
A. Melting point: 64C to 67C.
B. To 0.1 g add 0.2 mL of benzoyl chloride and 0.5 mL of dilute sodium hydroxide solution. Shake vigorously until a white, crystalline precipitate is formed. Add 5 mL of water and filter. The precipitate, recrystallised from 5 mL of methanol and dried at 70C, melts at 85C to 88C.
C. To 5 mL of solution S (see Tests) add 0.1 mL of ferric chloride solution. A bluish colour is produced.

TESTS
Solution S: To 3.0 g, finely powdered, add 60 mL of carbon dioxide-free water, shake for 2 min and filter.
Appearance of solution: The solution is clear and not more intensely coloured than reference solution.
Dissolve 1.25 g in ethanol (96 per cent) and dilute to 25 mL with the same solvent.
Acidity: To 10 mL of solution S add 0.1 mL of methyl red solution. The solution is orange or red. Not more than 0.2 mL of 0.01 M sodium hydroxide is required to produce a pure yellow colour.
Related substances: To pass the test by gas chromatography.
Limits:
— unspecified impurities: for each impurity, maximum 0.10 per cent;
— total: maximum 1 per cent;
— disregard limit: the area of the principal peak in the chromatogram obtained with the reference solution (0.05 per cent).
Non-volatile matter: Maximum 0.1 per cent.
Evaporate 2.0 g to dryness on a water-bath and dry the residue at 100-105C. The residue weighs not more than 2 mg.

ASSAY
In a ground-glass-stoppered flask, dissolve 70.0 mg in 30 mL of glacial acetic acid. Add 25.0 mL of0.0167 M potassium bromate, 20 mL of a 150 g/L solution of potassium bromide and 10 mL of hydrochloric acid. Allow to stand protected from light for 15 min. Add 1 g of potassium iodide and 100 mL of water. Titrate with 0.1 M sodium thiosulfate, shaking vigorously and using 1 mL of starch solution, added towards the end of the titration, as indicator. Carry out a blank titration.
1 mL of 0.0167 M potassium bromate is equivalent to 3.565 mg of C7H7ClO.

STORAGE
Protected from light.

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Manufacturers

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

e-mail: info@anmol.org

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Last updated 12-jul-21

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Chlorocresol
p-Chlorocresol or PCMC or 4-Chloro-3-methylphenol BP Ph Eur USP NF Grades Manufacturers
Chlorocresol