Polymyxin B nonapeptide TFA - CAS:2220175-42-6

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Polymyxin B nonapeptide TFA

目录号 : KM2708 CAS No. : 2220175-42-6 纯度 : 98%

Data Sheet 产品使用指南

Polymyxin B nonapeptide TFA 是一种阳离子环肽。Polymyxin B nonapeptide TFA 是经酶裂解 Polymyxin B 而产生的衍生物，与 Polymyxin B 相比，Polymyxin B nonapeptide TFA 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。

规格	价格	是否有货
5mg		In-stock
10mg		In-stock
50mg		In-stock
100mg		In-stock
200mg	询价	In-stock
500mg	询价	In-stock

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生物活性

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.

体外研究

Polymyxin B nonapeptide, a cationic cyclic peptide derived by enzymatic processing from the naturally occurring peptide polymyxin B, is able to increase the permeability of the outer membrane of Gram-negative bacteria toward hydrophobic antibiotics probably by binding to the bacterial lipopolysaccharide (LPS).

分子式

C₄₅H₇₅F₃N₁₄O₁₃

分子量

1533.25

CAS号

2220175-42-6

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Sealed storage, away from moisture

Powder	-80°C	2 years
	-20°C	1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

溶解性数据

In Vitro:

H₂O : 100 mg/mL (65.22 mM; Need ultrasonic)

配制储备液

浓度溶剂体积质量	1 mg	5 mg	10 mg

1 mM	0.6522 mL	3.2610 mL	6.5221 mL
5 mM	0.1304 mL	0.6522 mL	1.3044 mL
10 mM	0.0652 mL	0.3261 mL	0.6522 mL

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

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