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Chlortetracycline hydrochlorideAureomycin hydrochloride
| ITEMS | LIMIT |
| Characters | Yellow powder |
| Identification | |
| A | Thin-layer chromatography |
| B | As description of EP6 |
| C | Reaction of Chlorides |
| PH | 2.3 ~ 3.3 |
| Water | ≤2.0% |
| Spec. Rotation | -235°~ -250° |
| Sulfate Ash | ≤0.5% |
| Absorbance | 460nm ≤0.40 |
| Related substances | |
| A | 4-Epichlortetracycline ≤4.0% |
| B | Total of other impurities ≤1.0% |
| Heavy Metals | ≤50ppm |
| TC.HCL (on dry basis) | ≤8.0% |
| CTC.HCL | ≥89.5% (on dry basis) |
| TC.HCL+CTC.HCL | 94.5 ~ 102.0% (on dry bais) |
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