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Colistin Sale

(Synonyms: 抗敌素; Polymyxin E) 目录号 : GC43298

An antibiotic

Colistin Chemical Structure

Cas No.:1066-17-7

规格 价格 库存 购买数量
25mg
¥1,525.00
现货
100mg
¥4,882.00
现货

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Sample solution is provided at 25 µL, 10mM.

Description

Colistin is a complex antibiotic containing greater than 30 components, with the cyclic polypeptide antibiotics polymyxins E1 (colistin A) and E2 (colistin B) as the major components. It was originally isolated from B. polymyxa. Colistin inhibits the growth of the Gram-negative bacteria E. coli, P. aeruginosa, P. fluorescens, and S. enterica (MICs = 0.04-2.08 μg/ml) and Gram-positive L. ivanovii and L. monocytogenes (MICs = 2.5-10 μg/ml) but is not active against Gram-positive L. lactis, P. polymyxa, P. acidilactici, or S. aureus at concentrations up to 5 μg/ml. It also inhibits the growth of clinical isolates of both susceptible and multidrug-resistant P. aeruginosa (MICs = 1-2 mg/l). Colistin binds selectively to LPS from susceptible strains of K. pneumoniae compared to resistant strains (Kis = 0.56 and 2.83 μM, respectively), which may contribute to its mechanism of action against Gram-negative bacteria. In vivo, colistin slows the growth of P. aeruginosa and A. baumannii in a neutropenic mouse model of thigh infection.

化学性质

Cas No. 1066-17-7 SDF
别名 抗敌素; Polymyxin E
分子式 C53H100N16O13 (for E1) 分子量 1169.5
溶解度 PBS (pH 7.2): 10 mg/ml 储存条件 Store at -20°C
General tips 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 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。
Shipping Condition 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。

溶解性数据

制备储备液
1 mg 5 mg 10 mg
1 mM 0.8551 mL 4.2753 mL 8.5507 mL
5 mM 0.171 mL 0.8551 mL 1.7101 mL
10 mM 0.0855 mL 0.4275 mL 0.8551 mL
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