Polymyxin B nonapeptide

Polymyxin B nonapeptide

• CAS Number: 86408-36-8
• UNSPSC Description: Polymyxin B nonapeptide is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue. Polymyxin B nonapeptide is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes[1][2][3].
• Target Antigen: Antibiotic; Bacterial
• Type: Peptides
• Related Pathways: Anti-infection
• Applications: Cancer-programmed cell death
• Field of Research: Infection
• Assay Protocol: https://www.medchemexpress.com/Polymyxin_B_nonapeptide.html
• Purity: 99.82
• Solubility: DMSO : 16.67 mg/mL (ultrasonic)|H2O : ≥ 100 mg/mL
• Smiles: O=C(N[C@H](C(N[C@@](C(N[C@H](C(N[C@]([C@H](O)C)([H])C(NCC[C@@](NC([C@H](CCN)NC([C@@H](N)[C@H](O)C)=O)=O)([H])C(N[C@@H](CCN)C1=O)=O)=O)=O)CCN)=O)([H])CCN)=O)CC(C)C)[C@H](N1)CC2=CC=CC=C2
• Molecular Weight: 963.13
• References & Citations: [1]Al-Marzooq F, et al. Discerning the role of polymyxin B nonapeptide in restoring the antibacterial activity of azithromycin against antibiotic-resistant Escherichia coli. Front Microbiol. 2022 Sep 21;13:998671.|[2]Danner RL,et al. Purification, toxicity, and antiendotoxin activity of polymyxin B nonapeptide. Antimicrob Agents Chemother. 1989 Sep;33(9):1428-34.|[3]Ofek I, et al. Antibacterial synergism of polymyxin B nonapeptide and hydrophobic antibiotics in experimental gram-negative infections in mice. Antimicrob Agents Chemother. 1994 Feb;38(2):374-7.
• Shipping Conditions: Blue Ice
• Storage Conditions: -80°C, 2 years; -20°C, 1 year (Powder, sealed storage, away from moisture and light)
• Clinical Information: Launched