Polymyxin B sulfate
SIAL/P0972 - meets USP testing specifications
Synonym: Polymyxin B sulfate salt
CAS Number: 1405-20-5
Empirical Formula (Hill Notation): C55H96N16O13 · 2H2SO4
Molecular Weight: 1385.61
EC Number: 215-774-7
MDL Number: MFCD00131991
Linear Formula: C55H96N16O13 · 2H2SO4
Product Type: Chemical
agency | meets USP testing specifications |
USP/NF | |
antibiotic activity spectrum | fungi |
Gram-negative bacteria | |
Gram-positive bacteria | |
application(s) | pharmaceutical (small molecule) |
form | powder |
InChI | 1S/C48H82N16O13.H2O4S/c1- |
InChI key | HNDFYNOVSOOGDU-UHFFFAOYSA |
mode of action | cell membrane | interferes |
Quality Level | 200 |
SMILES string | O=C(C(NC(C(CCN)NC(CCCCC(C |
storage temp. | 2-8°C |
Application: | Polymyxin B sulfate is a strongly cationic cyclic polypeptide antibiotic that is derived from fermentation of Bacilus polymyxa. It is a mixture of B1 and B2 sulfate. The product has been used clinically to treat infections of the urinary tract, meninges and blood stream caused by susceptible strains of Pseudomonas aeruginosa. It also has uses studying multidrug-resistant pathogens, as an immobilized agent for removal of endotoxins, and to induce pore formation in the membranes of cortex cells from excised sorghum roots. |
Biochem/physiol Actions: | Mode of Action: Polymyxin B Sulfate binds to the lipid A portion of bacterial lipopolysaccharides†, disrupting the cytoplasmic membrane by inducing pores large enough to permit nucleotide leakage in bacterial walls. This disrupts the permeability of the cytoplasmic membrane. Antimicrobial spectrum: Has bactericidal action on most gram-negative bacilli††, including E. Coli and on most fungi and gram-positive bacteria. |
Caution: | As supplied, the product should be stored at 2-8°C in the dark. No change was observed in retained samples after three years′ of storage in these conditions. Stock solutions should be sterile filtered and stored at 2-8°C. They are stable at 37°C for 5 days. |
General description: | Chemical structure: peptide |
Packaging: | This product is packaged in a bottomless glass bottle, with its contents inside an inserted fused cone. |
Symbol | GHS07 |
Signal word | Warning |
Hazard statements | H302 |
Precautionary statements | P264 - P270 - P301 + P312 - P501 |
Hazard Codes | Xn |
Risk Statements | 22 |
RIDADR | NONH for all modes of transport |
WGK Germany | WGK 3 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Storage Temp. | 2-8°C |
UNSPSC | 12352209 |