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| Item | Index |
| Appearance | Whitecrystalline powder, soluble in water. It dissolves in dilute acid and alkaline solutions. |
| Identification | a) TLC results |
| b) Color reaction with sulfuric acid | |
| c) Color reaction with silver nitrate | |
| Ph | 4.5 to 7.0 |
| Specific optical rotation | -203°to -216°° |
| Specific absorbance at 353nm | 290 to 310 |
| Light-absorbing impurities | a) At 430nm not greater than 0.25 |
| b) At 490nm not greater than 0.20 | |
| Related substances | 4-epioxytetracycline≤ 0.5% |
| Tetracycline hydrochloride≤2.0% | |
| Peak on the tail of the main peak≤2.0% | |
| Heavy metals | Not more than 50ppm |
| Water | 6.0 % to 9.0% |
| Sulphated ash | Not more than 0.5% |
| Assay | 95.0% -100.5%(C22H24N2O9) based onanhydrous substance |
Usage
Antipyretic and analgesic, anti-rheumatic drugs, for the treatment of active rheumatism, rheumatoid arthritis and other diseases.
Packaging and Shipping
25kg/drum or by customized.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
| Item | Index |
| Appearance | Whitecrystalline powder, soluble in water. It dissolves in dilute acid and alkaline solutions. |
| Identification | a) TLC results |
| b) Color reaction with sulfuric acid | |
| c) Color reaction with silver nitrate | |
| Ph | 4.5 to 7.0 |
| Specific optical rotation | -203°to -216°° |
| Specific absorbance at 353nm | 290 to 310 |
| Light-absorbing impurities | a) At 430nm not greater than 0.25 |
| b) At 490nm not greater than 0.20 | |
| Related substances | 4-epioxytetracycline≤ 0.5% |
| Tetracycline hydrochloride≤2.0% | |
| Peak on the tail of the main peak≤2.0% | |
| Heavy metals | Not more than 50ppm |
| Water | 6.0 % to 9.0% |
| Sulphated ash | Not more than 0.5% |
| Assay | 95.0% -100.5%(C22H24N2O9) based onanhydrous substance |
Usage
Antipyretic and analgesic, anti-rheumatic drugs, for the treatment of active rheumatism, rheumatoid arthritis and other diseases.
Packaging and Shipping
25kg/drum or by customized.
Storage
It should be sealed and shaded to be stored in a dry, cool, well ventilated place.
