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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
零下80~20°C
- 保质期:
Powder: -20°C for 3 years In solvent: -80°C for 2 years
- 英文名:
Polymyxin B nonapeptide acetate
- 库存:
10
- 供应商:
TargetMol
- CAS号:
TP1341L
- 规格:
10 mg/2 mg/100 mg/50 mg/5 mg/1 mg/25 mg
| 规格: | 10 mg | 产品价格: | ¥2210.0 |
|---|---|---|---|
| 规格: | 2 mg | 产品价格: | ¥925.0 |
| 规格: | 100 mg | 产品价格: | ¥7580.0 |
| 规格: | 50 mg | 产品价格: | ¥5390.0 |
| 规格: | 5 mg | 产品价格: | ¥1330.0 |
| 规格: | 1 mg | 产品价格: | ¥633.0 |
| 规格: | 25 mg | 产品价格: | ¥3750.0 |
Product Introduction
Bioactivity
英文名:Polymyxin B nonapeptide acetate
描述:Polymyxin B nonapeptide acetate is a cationic cyclic peptide. Polyxin B nonapeptide is a derivative produced by enzymatic cleavage of polyxin B. Compared with polyxin B, polyxin B nonapeptide has low toxicity, lacks bactericidal activity and still has the ability to destroy the outer membrane of Gram-negative bacteria.

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文献和实验发现于多粘杆菌(Bacillus polymyxa)培养液中的抗菌性多肽,有A、B、C、D、E等五种。抗菌谱相互类似而范围宽广,特别对革兰氏阴性细菌作用颇强,毒性较弱。口服时不能吸收,但皮下或肌肉注射很快就转移到血液中去,在3-16小时保持较高的血中浓度。多粘菌素A用于治疗幼儿的重症百日咳可获很好效果。能使金黄色葡萄球菌及大肠杆菌的R型菌体凝集,并形成核糖核酸和不溶性盐类。多粘菌素B对肾的损害较A、 D两类为少,因此作为点眼药应市,对细菌性眼炎有效。
Silver Acetate Autometallography (AMG)
and the detection of metallic gold and silver, and sulfides and selenides of mercury, silver and zinc. Solutions A and B should be freshly prepared for every run. Solution A: Dissolve 80 mg silver acetate (code 85140; Fluka, Buchs, Switzerland) in 40 mL
Ethanol vs Isopropanol for DNA precipitation-Molecular B
QUOTE julianne: been using sod acetate- isoprop precipiation with no problems all the while. QUOTE Turtle: my suggestion would be to ethanol precipitate, QUOTE for PCR product purification used for cloning, phenol/chloroform's classical method
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