

| Model | MOS3963-45-9 |
| CAS: | 3963-45-9 |
| Molecular formula: | C22H23ClN2O8 |
| Molecular weight: | 478.8796 |
| Vapour Pressur: | 5.4E-28mmHg at 25°C |
| Boiling point: | 813.8°C at 760 mmHg |
| Flash point: | 445.9°C |
Methacycline Hydrochloride (CAS: 3963-45-9)
| ITEM | SPECIFICATION | INDEX |
| Characteristics | A yellow crystalline powder hygroscopic | Positive |
| Identification | (A) (B) (C) | Positive |
| Crystallinity | Meets the requirements | Positive |
| Acidity | pH 2.0 ~ 3.0 | 2.48 |
| Related substances | Oxytetracycline ≤ 1.0% | Nought |
| 6-epidoxycycline ≤ 1.0% | Nought | |
| Doxycycline ≤ 2.0% | 0.75% | |
| Other impurities ≤ 0.5% | 0.39% | |
| Water | ≤ 2.0% | 0.28% |
| Assay
(anhydrous and ethanol free) |
832 μg/mg ~ 970 μg/mg | 914 μg/mg |
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