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P4932

Polymyxin B sulfate salt

Name: Polymyxin B sulfate salt
Brand: SIGMA

powder, non-animal origin, suitable for cell culture, BioReagent

Synonym(s):

Polymixin, Polymixin B, Polymixin B sulfate

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About This Item

Empirical Formula (Hill Notation):

C₅₅H₉₆N₁₆O₁₃ · 2H₂SO₄

CAS Number:

1405-20-5

Molecular Weight:

1385.61

NACRES:

NA.76

UNSPSC Code:

12352207

EC Number:

215-774-7

MDL number:

MFCD00131991

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Properties

Product Name

Polymyxin B sulfate salt, powder, BioReagent, suitable for cell culture

product line

BioReagent

Quality Level

200

form

powder

potency

≥6,000 USP units per mg

technique(s)

cell culture | mammalian: suitable

antibiotic activity spectrum

Gram-negative bacteria

mode of action

cell membrane | interferes

storage temp.

2-8°C

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

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)

InChI key

HNDFYNOVSOOGDU-UHFFFAOYSA-N

Description

General description

Polymyxin B is a member of the polymyxin group of antibiotics, obtained from different strains of Bacillus polymyxa and related species. It contains a cyclic heptapeptide unit and a tripeptide side chain, which is N-acylated by a fatty acyl residue. Polymyxin B sulfate salt is generally used for the treatment of Gram-negative bacterial infections.
Chemical structure: peptide

Application

Polymyxin B sulfate salt has been used:

for the treatment of BAC-1.2F5 murine macrophages as an LPS (lipopolysaccharide) inhibitor
as positive and negative control during microbicidal concentration (MCC) assay

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.

Polymyxin B sulfate 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 been used in 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.

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.

Other Notes

1mu,5mu

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.

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pictograms

GHS07

signalword

Warning

hcodes

H302

pcodes

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

涉药品监管产品

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Certificates of Analysis (COA)

Lot/Batch Number

0000524041

0000519643