Tetracycline hydrochloride

Melting point  220-223 °C(lit.)

alpha  -252 º (c=0.5, H2O) 

refractive index  -253 ° (C=0.5, 0.1mol/L HCl) 

storage temp.  2-8°C

solubility  H2O: 10 mg/mL as a stock solution. Stock solutions should be filtered sterilized and stored at −20°C. Stable at 37°C for 4 days.

form  powder

color  faint yellow to yellow 

PH pH(10g/l, 25℃) : 1.8～3.0 

optical activity [α]/D -255 to 240° (Specific rotation ) 

Water Solubility  50 g/L