P4119

Polymyxin B -sulfat (Salz)

Biotechnology Performance Certified

• Empirische Formel (Hill-System): C₅₅H₉₆N₁₆O₁₃ · 2H₂SO₄
• CAS-Nummer: 1405-20-5
• Molekulargewicht: 1385.61
• EC Number: 215-774-7
• UNSPSC Code: 41116107
• MDL number: MFCD00131991

Eigenschaften

• InChI key: HNDFYNOVSOOGDU-UHFFFAOYSA-N
• InChI: 1S/C48H82N16O13.H2O4S/c1-27(2)24-37-47(76)59-32(11-19-52)41(70)56-31(10-18-51)43(72)61-35(14-22-65)39(68)54-21-13-34(45(74)57-33(12-20-53)44(73)64-38(48(77)63-37)25-28-6-4-3-5-7-28)60-42(71)30(9-17-50)58-46(75)36(15-23-66)62-40(69)29(8-16-49)55-26-67;1-5(2,3)4/h3-7,26-27,29-38,65-66H,8-25,49-53H2,1-2H3,(H,54,68)(H,55,67)(H,56,70)(H,57,74)(H,58,75)(H,59,76)(H,60,71)(H,61,72)(H,62,69)(H,63,77)(H,64,73);(H2,1,2,3,4)
• SMILES string: O=C(C(NC(C(CCN)NC(CCCCC(C)CC)=O)=O)C(C)O)NC(CCN)C(NC(CCNC(C(NC(C(NC(C(CCN)N1)=O)CCN)=O)C(O)C)=O)C(NC(CCN)C(NC(CC2=CC=CC=C2)C(NC(CC(C)C)C1=O)=O)=O)=O)=O.O=S(O)(O)=O
• grade: Biotechnology Performance Certified
• form: powder
• technique(s): cell culture | mammalian: suitable
• impurities: endotoxin, tested
• solubility: H₂O: soluble 50 mg/mL
• antibiotic activity spectrum: Gram-negative bacteria, Gram-positive bacteria, fungi
• mode of action: cell membrane | interferes
• storage temp.: 2-8°C

Beschreibung

General description

Chemical structure: peptide

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

Wirkungsweise: Polymyxin-B-Sulfat bindet an den Lipid-A-Teil der bakteriellen Lipopolysaccharide† und unterbricht die Zytoplasmamembran durch Bildung von Poren, die groß genug sind, um einen Nukleotidaustritt durch die Bakterienwände zu ermöglichen. Dadurch wird die Durchlässigkeit der Zytoplasmamembran gestört.

Antimikrobielles Spektrum: Hat eine bakterizide Wirkung auf die meisten gramnegativen Stäbchen††, einschließlich E. coli, sowie auf die meisten Pilze und grampositiven Bakterien.

Preparation Note

Polymyxin B sulfate is soluble in water at 50 mg/mL, producing a very slightly hazy, colorless to yellow solution. It has only minimal solubility in any organic solvent. For example, it has a solubility of 0.115 mg/mL in ethanol. This product is biotechnology performance certified.

Other Notes

10mu,25mu,50mu

Keep container tightly closed in a dry and well-ventilated place.Keep in a dry place.

Disclaimer

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.

Sicherheitshinweise

• pictograms: GHS07
• signalword: Warning
• hcodes: H302
• pcodes: P264 - P270 - P301 + P312 - P501
• Hazard Classifications: Acute Tox. 4 Oral
• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Gloves