Product name | Colistin Methanesulfonate Sodium / Colistimethate Sodium |
CAS No. | 8068-28-8 |
Molecular Formula | C58H105N16Na5O28S5 |
Molecular Weight | 1759.90 |
Quality Standard | 98% up, Medicine Grade |
Appearance | White powder |
COA of Colistimethate Sodium |
Category | Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug |
Standard | Medical standard |
Shelf life | 2 years |
Storage | should be stored in a well-closed container at low temperature, keep away from moisture, heat and light. |
Test Item | Standard: USP |
Identification | IR spectrum similar to that of RS |
HPLC retention time similar to that of RS |
Related substance | Total impurities: NMT0.3% |
Single impurity: NMT0.1% |
Heavy metals | NMT 10ppm |
Loss on drying | NMT0.5% |
Residue on ignition | NMT0.1% |
Assay | 98.5%-101.0% |
What is Colistimethate Sodium
Colistin is a group of polypeptide antibiotics produced by bacillus polymyxa. Among them, polymyxin B and E have significant antibacterial activity against gram-negative bacteria, and they are the first choice for the treatment of Pseudomonas aeruginosa infections.
