Polymyxin B Sulfate is a cationic surfactant antibiotic agent. A mixture of polymyxins B1 and B2, increases the permeability of the cell membrane.In vitro: RB50 is resistant to killing by polymyxin B at concentrations up to 100 μg/ml.
| Catalog Number | A000641 |
| CAS Number | 1405-20-5 |
| Synonyms | Aerosporin, PMB, Poly-RX |
| Molecular Formula | C56H98N16O13.H2SO4 |
| Purity | 95% |
| Storage | -20°C |
| Related CAS | 4135-11-9 (free base) |
