Oxytetracycline veterinary, broad-spectrum antibiotics
Standard: USP32,GMP certificate
Pale yellow to tan, crystalline powder
Standard: USP32,GMP certificate
Pale yellow to tan, crystalline powder
Oxytetracycline veterinary
Another Name: Terramycin, 5-Hydroxytetracycline
Molecular Formular: C22H24N2O9
Molecular Weight: 460.44
CAS NO: 79-57-2
Standard: USP32
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ITEM
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SPECIFICATION
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RESULTS
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Characteristics
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Pale yellow to tan, crystalline powder
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Conforms
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Identification
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A. Absorption at 353nm: 96.0%~104.0%
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100.0%
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B. Color reaction
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Conforms
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Crystallinity
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Meet the requirement
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Conforms
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PH Value
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4.5~7.0
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6.0
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Moisture
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6.0%~9.0%
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7.5%
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Assay
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≥832 ug/mg
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899 ug/mg
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Light-absorbing impurities
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Light-absorbing at 430nm
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≤0.25%(anhydrous substance )
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0.13%
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Light-absorbing at 490nm
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≤0.20%(anhydrous substance )
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0.12%
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Particle Size
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U.S. Sieve No.20(850um)
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All pass
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Conforms
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U.S. Sieve No.80(180um)
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<5% max on the sieve
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Conforms
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Related substances
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4-epioxytetracycline
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≤0.5%
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0.4%
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Tetracycline Hcl
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≤2.0%
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0.5%
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Eluting on the tail of the principal peak
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≤2.0%
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1.7%
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