Methenamine GMP I0473 - news - GUANGZHOU HANPU PHARMACEUTICAL CO.,LTD GUANGZHOU HANPU PHARMACEUTICAL CO.,LTD

Methenamine GMP I0473

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Methenamine GMP I0473

MANUFACTURER	GUANGZHOU HANPU PHARMACEUTICAL CO.,LTD
SPECIFICATION	CP2010/BP/USP/EP
PACKING	40KG/DRUM
CAS	100-97-0
Characteristics	White or almost white, crystalline powder or colourless crystals.
Solubility	Freely soluble in water,soluble in ethanol(96%) and in methylene chloride
Identification	A、Infrared absorption spectrophotometry(2.2.24), Comparison methenamine CRS B、An intense yellow colour develops C、The solution gives the reaction of ammonium salts and salts of volatile bases D、An orange precipitate is formed immediately
Appearance of solution.	Solution S is clear and colorless
Acidity or alkalinity	Complies
Free formaldehyde	Not more than 50ppm
Chlorides	Not more than 100ppm
Sulphates	Not more than 100ppm
Ammonium	Not more than 50ppm
Heavy metals	Not more than 20ppm
Iron	Note more than 25 ppm
Loss on drying	Not more than 2.0%
Assay	99.0%~100.5%(C₆H₁₂N_4,calculated withreference to the dried substance.)