Metacresol CDMF 500ML Go Back

CASR

: 108-39-4

Molecular Formula

: CH3C6H4OH

Molecular Weight

: 108.14
Specifications  
Description: Colorless or yellowish to brownish-yellow or pinkish, highly refractive liquid, becoming darker with age and on exposure to light. A saturated solution of it is neutral or only slightly acid to litmus (USP/Ph.Eur)
Solubility: Sparingly soluble in water, usually forming a cloudy solution; dissolves in solutions of fixed alkali hydroxides. Miscible with alcohol, with ether with glycerin, with ethanol (96%) and with methylene chloride (USP / Ph.Eur)
Identification A (By IR): IR spectra of the sample should be concomitant with IR spectra of the corresponding stanard (USP/Ph.Eur)
Identification B (By GC Chromatogram): The retention time of the major peak of the sample solution corresponds to that of the standard solution, as obtained in the assay (USP)
Relative density: About 1.03 (Ph.Eur)
Melting point: About 11°C (Ph.Eur)
Boiling point: About 202°C (Ph.Eur)
Appearance of solution: Freshly prepared solution should not more opalescent than reference suspension III and not more intensely colored than reference solution BY7 (Ph.Eur)
Assay (By GC): 98.0%-102.0% (USP)
Organic Impurities / Related substances (Orthocresol): Not more than 0.5% (USP/Ph.Eur)
Organic Impurities / Related substances (Paracresol): Not more than 0.5% (USP/Ph.Eur)
Organic Impurities/ Related substances (Any unspecified impurity): Not more than 0.1% (USP/Ph.Eur)
Organic Impurities / Related substances (Total impurities): Not more than 1.0% (USP/Ph.Eur)
Clarity of Solution A (By Chemical Test): A clear solution (USP)
Clarity of Solution B (By Chemical Test): A clear solution (USP)
Acidity: Not more than 0.5ml of 0.01 M sodium hydroxide should require to change the colour of the indicator to yellow (Ph.Eur)
Residue on evaporation: 0.1% max (Ph.Eur)
Bacterial endotoxins: 0.5 EU/mg (In-house)
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