Polymyxin B solution

1 mg/mL in H2O, analytical standard

Número de CAS:
Número MDL:

Nivel de calidad



analytical standard


1 mg/mL in H2O


HPLC: suitable
gas chromatography (GC): suitable

Industria destacada

Pharmaceutical (small molecule)

Modo de acción

cell membrane | interferes

espectro de actividad antibiótica

Gram-negative bacteria
Gram-positive bacteria


single component solution

temp. de almacenamiento




InChI key


¿Está buscando productos similares? Visit Guía de comparación de productos

Descripción general

Chemical structure: peptide
Polymyxin B solution can find therapeutic applications as an antimicrobial agent, since it shows activity against multidrug-resistant (MDR) gram-negative bacterial infections.


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.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Acciones bioquímicas o fisiológicas

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.

Mode of Resistance: The activity of Polymyxin B sulfate is inhibited by iron(II), Co(II), Mn(II) and Magnesium ions. Polymyxin B may also be incompaitible with other microbial agents, including amphoterecin, cephalothin sodium, cephasolin sodium and heparin sodium.

Antimicrobial Spectrum: Has bactericidal action on most gram-negative bacilli, including E. Coli and on most fungi and gram-positive bacteria.

Nota de preparación

This product is concentrated at 1 mg/mL in water, and should be stored at 2-8°C.


12 - Non Combustible Liquids

WGK Alemania


Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

Eyeshields, Faceshields, Gloves

Certificado de Análisis

Certificado de origen

Pharmacodynamics of polymyxin B against Pseudomonas aeruginosa
Tam.HV, et al.
Antimicrobial Agents and Chemotherapy, 49, 3624-3630 (2005)
Bernard Knoops et al.
Cell chemical biology, 25(5), 550-559 (2018-03-20)
Inflammation is a pathophysiological response of innate immunity to infection or tissue damage. This response is among others triggered by factors released by damaged or dying cells, termed damage-associated molecular pattern (DAMP) molecules that act as danger signals. DAMPs interact...
Hazel Lin et al.
Small (Weinheim an der Bergstrasse, Germany), 16(35), e2002194-e2002194 (2020-08-04)
Graphene and other 2D materials, such as molybdenum disulfide, have been increasingly used in electronics, composites, and biomedicine. In particular, MoS2 and graphene hybrids have attracted a great interest for applications in the biomedical research, therefore stimulating a pertinent investigation...
Lucía Fernández et al.
Antimicrobial agents and chemotherapy, 57(1), 110-119 (2012-10-17)
Multidrug resistance in Pseudomonas aeruginosa is increasingly becoming a threat for human health. Indeed, some strains are resistant to almost all currently available antibiotics, leaving very limited choices for antimicrobial therapy. In many such cases, polymyxins are the only available...
Ana M Sandri et al.
The Journal of antimicrobial chemotherapy, 68(3), 674-677 (2012-11-28)
To evaluate the pharmacokinetics of polymyxin B in patients on continuous venovenous haemodialysis (CVVHD) after intravenous administration of unadjusted dosage regimens. Two critically ill patients had eight blood samples collected during a 12 h interval on days 8 and 10...

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico