多粘菌素B九肽（TFA盐）

(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-hydroxybutanamid

P646735-5mg

5mg

≥98%

多粘菌素B九肽（TFA盐）是一种阳离子环肽。多粘菌素B九肽（TFA盐）是经酶裂解 Polymyxin B 而产生的衍生物，与 Polymyxin B 相比，多粘菌素B九肽（TFA盐）毒性低，缺乏杀菌活性，仍具有破坏革兰氏阴性菌外膜的能力。 Polymyxin B nonapeptide TFA is a cyclic peptide obtained from Polymyxin B by proteolytic removal of its terminal amino acyl residue. Polymyxin B nonapeptide TFA is less toxic, lacks bactericidal activity, and retains its ability to render gram-negative bacteria susceptible to several antibiotics by permeabilizing their outer membranes.

多粘菌素 B 非肽是从多粘菌素 B 通过蛋白水解去除其末端氨基酰基残基而得到的环肽。多粘菌素 B 非肽的毒性较低，缺乏杀菌活性，但仍能使革兰氏阴性菌的抗药性降低。

Thr-{Dab}-{Dab}-{Dab}-d-Phe-Leu-{Dab}-{Dab}-Thr (Lactam: Dab3-Thr9)