BGC > Produktsuche > Doxycycline hydrochloride

Appearance	Yellow crystalline powder
Identification	TLC sulphuric acid reaction a yellow colour develops it gives reaction of chlorides
PH	2.0~3.0
Specific absorbance	at 349nm e(1%) 300~355
Specific optical rotation	-105 ~ -120°
Heavy metals	≤ 50ppm
Light-absorbing impurities	at 490nm ≤ 0.07
Related substances
6-epidoxycycline	≤ 2.0%
Metacycline	≤ 2.0%
4-epidoxycycline	≤ 0.5% (ep5)
4-epi-6-epidoxycycline	≤ 0.5% (ep5)
Oxytetracycline	≤ 0.5% (ep5)
any other impurity	≤ 0.5%
not identified impurities	≤ 0.1% (ep5)
Ethanol	4.3~6.0% (m/m)
Sulphated ash	≤ 0.4%
Water	1.4~2.8%
Assay	95.0~102.0% ( c22h25cln2o8) based on anhydrous, ethanol-free substance

Molecular Formula: C22H25ClN2O8
Molecular Weight: 480.9
Hazard Symbols: Xn,Xi
UN Number: NA 1993 / PGIII
WGKGermany: 3
HS Code: 29413000