Certificate of Analysis
| Product Name: | Colistin Sulfate |
| Catalog Number: | M4905 |
| CAS Number: | 1264-72-8 |
Physical and Chemical Properties
| Formula: | C52H100N16O17S |
| Molecular Weight: | 1253.51 |
| Solubility: | Water: ≥ 30 mg/mL |
| Storage: |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Chemical Structure: |  |
Analytical Data
| QC Standard: | >97% Antibiotic Titer ≥ 19000 u/mg |
| H-NMR: | Consistent with structure |
Product Information
| Description: | Colistin is a cyclic cationic decapeptide linked to a fatty acid side chain, it belongs to a group of similarly structured bacterial antimicrobial peptides. |
| Stability and Solubility Advice: | Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide. We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details. |