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ITEM | SPECIFICATION |
Characteristics | yellow crystalline powder |
Identification | A. Absorption at 353nm: 96.0%~104.0% |
Crystallinity | Meet the requirement |
PH Value | 4.5~7.0 |
Moisture | 6.0%~9.0% |
Assay | >=832 ug/mg |
Light-absorbing at 430nm | =<0.25%(anhydrous substance ) |
Light-absorbing at 490nm | =<0.20%(anhydrous substance ) |
U.S. Sieve No.20(850um) | All pass |
U.S. Sieve No.80(180um) | <5% max on the sieve |
4-epioxytetracycline | =<0.5% |
Tetracycline Hcl | =<2.0% |
Eluting on the tail of the principal peak | =<2.0% |
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