Polymyxin B nonapeptide

• CAT Number: P000417
• CAS Number: 86408-36-8
• Molecular Formula: C43H74N14O11
• Molecular Weight: 963.15
• Purity: ≥95%
• Synonyms: POLYMYXIN B NONAPEPTIDE HYDROCHLORIDE;polymyxinbnonapeptide;N2-(L-Thr-L-A2bu-)Cyclo(L-A2bu*-L-A2bu-D-Phe-L-Leu-L-A2bu-L-A2bu-L-Thr-);N2-(L-Thr-L-A2bu-)Cyclo(L-A2bu*-L-A2bu-D-Phe-L-Leu-L-A2bu-L-A2bu-Thr-);Nα-(L-Thr-L-A2bu-)Cyclo(L-A2bu*-L-A2bu-D-Phe-L
• Target: Bacterial
• Storage: 2-8°C
• IUPAC Name: (2S,3R)-2-amino-N-[(2S)-4-amino-1-oxo-1-[[(3S,6S,9S,12S,15R,18S,21S)-6,9,18-tris(2-aminoethyl)-15-benzyl-3-[(1R)-1-hydroxyethyl]-12-(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]amino]butan-2-yl]-3-hydroxybutanamide
• InChI: InChI=1S/C43H74N14O11/c1-22(2)20-31-40(65)52-26(10-15-44)35(60)51-29(13-18-47)39(64)57-34(24(4)59)43(68)49-19-14-30(53-36(61)28(12-17-46)54-42(67)33(48)23(3)58)38(63)50-27(11-16-45)37(62)56-32(41(66)55-31)21-25-8-6-5-7-9-25/h5-9,22-24,26-34,58-59H,10-21,44-48H2,1-4H3,(H,49,68)(H,50,63)(H,51,60)(H,52,65)(H,53,61)(H,54,67)(H,55,66)(H,56,62)(H,57,64)/t23-,24-,26+,27+,28+,29+,30+,31+,32-,33+,34+/m1/s1
• InChIKey: PYHYGIPVYYRJHU-QWDNBKTCSA-N
• SMILES: C[C@H]([C@H]1C(=O)NCC[C@@H](C(=O)N[C@H](C(=O)N[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N1)CCN)CCN)CC(C)C)CC2=CC=CC=C2)CCN)NC(=O)[C@H](CCN)NC(=O)[C@H]([C@@H](C)O)N)O

Polymyxin B nonapeptide（Cat No.:P000417）is a cationic cyclic peptide derived from Polymyxin B through enzymatic cleavage. It exhibits reduced toxicity compared to Polymyxin B and does not possess bactericidal activity. However, it retains its ability to disrupt the outer membrane of Gram-negative bacteria. This property makes Polymyxin B nonapeptide valuable in enhancing the permeability of bacterial membranes, enabling the co-delivery of drugs or nanoparticles for potential therapeutic applications against Gram-negative bacterial infections, while minimizing the toxic effects associated with the parent compound Polymyxin B.