Metronidazole CAS: 443-48-1 CAS NO.443-48-1

Product Details

chemical name: 2-methyl-5-nitro-1-imidazoleethanol; (2-methyl-5-nitro-1-imidazolee; 2-(2-methyl-5-nitroimidazol-1-yl)ethanol; fossyol

cas no. :443-48-1

molecular formula:c6h9n3o3

molecular weight:171.15

einecs:207-136-1

category: disinfectant and antiseptic

item		specification	result
appearance		a white or yellowish crystalline powder	comply
solubility		slightly soluble in water,in acetone,in alcohol and in methylene chloroform,very slightly soluble in ether	comply
identification a),b)		a) melting point 159-163°c	a) 160.1-160.5°c
identification a),b)		b) specific absorbance 365-389	b) 377
loss on drying		0.5% max	0.15%
sulphate ashes		0.1% max	0.07%
heavy metal		20ppm max	less than 20ppm
residual solvents		ethanediol less than 620ppm	less than 620ppm
particle size		40-60mesh	comply
appearance of solution		suspension 2	comply
appearance of solution		and solution gy6	comply
related substance	1) impurity	0.1%max	0.06%
	2)total impurity	0.2%max	0.14%
	3)disregard limited	0.01% max	pass
assay		99.0%-101.0%

item		specification	result
appearance		a white or yellowish crystalline powder	comply
solubility		slightly soluble in water,in acetone,in alcohol and in methylene chloroform,very slightly soluble in ether	comply
identification a),b)		a) melting point 159-163°c	a) 160.1-160.5°c
identification a),b)		b) specific absorbance 365-389	b) 377
loss on drying		0.5% max	0.15%
sulphate ashes		0.1% max	0.07%
heavy metal		20ppm max	less than 20ppm
residual solvents		ethanediol less than 620ppm	less than 620ppm
particle size		40-60mesh	comply
appearance of solution		suspension 2	comply
appearance of solution		and solution gy6	comply
related substance	1) impurity	0.1%max	0.06%
	2)total impurity	0.2%max	0.14%
	3)disregard limited	0.01% max	pass
assay		99.0%-101.0%