CAS number： 54-35-3
Molecular formula： C29H38N4O6S
molecular weight： 570.70
Chemical structure：
| Product Name： | PROCAINE PENICILLIN G STERILE | |
| Expiry Time:： | 4 years | |
| Test Item | Standard | Result |
| CHARACTERS | A white crystalline powder | A white crystalline powder |
| IDENTIFICATION | Positive reaction | Positive reaction |
| TESTS | ||
| pH | 5.0-7.5 | 5.8 |
| Related substance | 4-aminobenzoic acid NMT 0.024% | 0.003% |
| Water | Any other impurity NMT 1% 2.8%~4.2% | 0.07% 3.2% |
| Sterility | Meet the requirements | Meet the requirements |
| Bacterial endotoxins: | Meet the requirements | Meet the requirements |
| Specific optical rotation | +165o - +180o | +172o |
| ASSAY | ||
Procaine benzylpenicillin（anhydrous） | 96.0%~102.0% | 100.2% |
| (C13H20N2 O2，C16H18N2O4S) | ||
| Procaine（anhydrous）, calculated as | 39.0% ~42.0% | 41.6% |
| (C13H20N2 O2） | ||
| Conclusion: | Complies with the requirement of BP standards |
