Manufacturer Provide Antibiotic API Raw Material CAS56-75-7 Chloramphenicol
Introduction
1.Product Name: Chloramphenicol
2.CAS NO:56-75-7
3.Purity: 99%min
4.Appearance:White crystalline powder
5.Molecular formula: C11H12Cl2N2O5
6.Molecular weight:323.13
7.Melting Point :148-150 °C(lit.)
8.Boiling Point :644.9±55.0 °C
9.Density :1.6682
10.Storage:Keep in dark place,Inert atmosphere,2-8°C
Chloramphenicol is a very popular used antibiotic with a relatively simple structure. It was firstly isolated from cultures of Streptomyces venequelae in 1940's. But for now, Chloramphenicol is mainly produced synthetically. It was the 1st broad-spectrum anti-biotic discovered and approved by human being. DL-Chloramphenicol acts by suppressing bacteriostatic protein synthesis.
| ITEM | SPECIFICATION | RESULT |
| Characteristics | White or white with greenish-yellowish crystalline powder | Conforms |
| Solubility | Moderately soluble in 95% alcohol,very little soluble in ether and water,practically insoluble chlorophorm | Qualified |
| Melting range | 149~153°C | 152.2°C |
| Acidity or alkalinity | 4.5~7.5 | 6.6 |
| Chloride | ≤100ppm | <100ppm |
| Sulphated | ≤0.1% | 0.06% |
| Heavy metals | ≤10ppm | <10ppm |
| Loss on drying | ≤0.5% | 0.19% |
| Assay(dried substance) | 98.0~102.0% DL-Chloramphenicol | 99.28% |
China
