Ugrás a tartalomra
Merck

P0972

Sigma-Aldrich

Polymyxin B sulfate

meets USP testing specifications

Szinonimák:

Polymyxin B sulfate salt

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez


About This Item

Tapasztalati képlet (Hill-képlet):
C55H96N16O13 · 2H2SO4
CAS-szám:
Molekulatömeg:
1385.61
EC-szám:
MDL-szám:
UNSPSC kód:
12352209
NACRES:
NA.21

Ügynökség

USP/NF
meets USP testing specifications

Minőségi szint

Forma

powder

antibiotikus hatásspektrum

Gram-negative bacteria
Gram-positive bacteria
fungi

alkalmazás(ok)

pharmaceutical (small molecule)

Hatásmechanizmus

cell membrane | interferes

tárolási hőmérséklet

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)

Nemzetközi kémiai azonosító kulcs

HNDFYNOVSOOGDU-UHFFFAOYSA-N

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Általános leírás

Chemical structure: peptide

Alkalmazás

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.

Biokémiai/fiziológiai hatások

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.

Kiszerelés

This product is packaged in a bottomless glass bottle, with its contents inside an inserted fused cone.

Vigyázat

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.

Piktogramok

Exclamation mark

Figyelmeztetés

Warning

Figyelmeztető mondatok

Óvintézkedésre vonatkozó mondatok

Veszélyességi osztályok

Acute Tox. 4 Oral

Tárolási osztály kódja

11 - Combustible Solids

WGK

WGK 3

Lobbanási pont (F)

Not applicable

Lobbanási pont (C)

Not applicable

Egyéni védőeszköz

dust mask type N95 (US), Eyeshields, Gloves


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Analitikai tanúsítványok (COA)

Lot/Batch Number

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Dokumentumtár megtekintése

Martti Vaara et al.
Peptides, 91, 8-12 (2017-03-17)
Recent years have brought in an increased interest to develop improved polymyxins. The currently used polymyxins, i.e. polymyxin B and colistin (polymyxin E) are pentacationic lipopeptides that possess a cyclic heptapeptide part with three positive charges, a linear "panhandle" part
Martti Vaara et al.
The Journal of antimicrobial chemotherapy, 73(2), 452-455 (2017-11-18)
Extremely multiresistant strains of Enterobacteriaceae, such as those of Escherichia coli and Klebsiella pneumoniae, are emerging and spreading at a worrisome speed. Polymyxins (polymyxin B, colistin) are used as last-line therapy against such strains, in spite of their notable nephrotoxicity
Mei-Ling Han et al.
ACS chemical biology, 13(1), 121-130 (2017-11-29)
Polymyxins are last-line antibiotics against life-threatening multidrug-resistant Gram-negative bacteria. Unfortunately, polymyxin resistance is increasingly reported, leaving a total lack of therapies. Using lipidomics and transcriptomics, we discovered that polymyxin B induced lipid A deacylation via pagL in both polymyxin-resistant and
Amit Kumar et al.
Scientific reports, 7, 39925-39925 (2017-01-05)
To become clinically effective, antimicrobial peptides (AMPs) should be non-cytotoxic to host cells. Piscidins are a group of fish-derived AMPs with potent antimicrobial and antiendotoxin activities but limited by extreme cytotoxicity. We conjectured that introduction of cationic residue(s) at the
Angelo Frei et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(13), 2852-2858 (2019-12-04)
New antibiotics and innovative approaches to kill drug-resistant bacteria are urgently needed. Metal complexes offer access to alternative modes of action but have only sparingly been investigated in antibacterial drug discovery. We have developed a light-activated rhenium complex with activity

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