China wholesale Purity 99% antibiotic doxycycline China Manufacturer

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China wholesale Purity 99% antibiotic doxycycline

Product Description

Item	Specification
Characteristics	Yellow crystalline powder
Identification	a) HPLC results
	b) TLC results
	c) Color reaction with sulfuric acid
	d) Color reaction with silver nitrate
PH	2.03.0
Specific optical rotation	-105-120 Deg.
Specific absorbance at 349nm	300-335
Light-absorbing impurities 490nm	0.07 max
Related substances	a) Methacycline: 2.0% max
	b) 6-epidoxycycline: 2.0% max
	c) 4-epidoxycycline: 0.5% max
	d) 4-epi-6-epidoxycycline: 0.5% max
	e) Oxytetracycline: 0.5% max
	f) 2-acetyl-2-decarbamoyldoxycycline: 0.5% max
	g) Any other impurity: 0.5% max
	h) Not indentified impurities:0.1%max
Ethanol	4.36.0%
Heavy metals	40ppm max
Water	1.42.8%
Sulphate ash	0.4% max
Assay	95.0%102.0% (C22H25ClN2O8) 88.0%~94.0%( C22H24N2O8) basedon anhydrous, ethanol-free substance
	d) 4-epi-6-epidoxycycline: 0.5% max
	e) Oxytetracycline: 0.5% max
	f) 2-acetyl-2-decarbamoyldoxycycline: 0.5% max
	g) Any other impurity: 0.5% max
	h) Not indentified impurities:0.1%max

Related Products

Pharmaceutical Intermediates	Feed Additives
Human API	Food Additives
Veterinary API	Excipients
Vitamins	Minerals
Herbal Extracts	Amino acids

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