high concentration has the effects of sterilization. It is soluble in water, slightly soluble in ethanol, insoluble in chloroform and diethyl ether.Physical Properties
Melting point 220-223 °C(lit.)
The rotation -252 º (c=0.5, H2O)Refractive index -253 ° (C=0.5, 0.1mol/L HCl)
Storage conditions 2-8°C
Water solubility 50 g/L
Specification
Characters A yellow crystalline powder
Acidity(pH) 1.8-2.8Specific optical rotation, -240— -258
Loss on drying, % ≤ 1.0
4-Epitetracycline, % ≤ 3.0
Oxytetracycline, % ≤ 0.5
4-Epianhydrotetracycline, % ≤ 0.5
Chlortetracycline hydrochloride, % ≤ 1.0
Anhydrotetracycline, % ≤ 0.5
Total other impurities, % ≤ 1.0
Assay(on dried basis), % ≥ 96.0
Acetone, ppm ≤ 100
N-butanol, ppm ≤ 3000
TAMC, cfu/g ≤ 1000
TYMC, cfu/g ≤ 100
E.coli Not detected
Packaging
25kg per fiber drum9mt per 20ft container
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