Colistin Sulfate

製品コードS4029 バッチS402901

印刷

化学情報

Chemical Structure Synonyms Polymixin E Sulfate Storage
(From the date of receipt)		 3 years -20°C powder
1 years -80°C in solvent
化学式

C52H98N16O13.5/2H2SO4
分子量 1400.63 CAS No. 1264-72-8
Solubility (25°C)* 体外 Water 560 mg/mL (399.82 mM)
DMSO Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

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生物活性

製品説明 Colistin (Polymixin E) is a cyclic cationic decapeptide linked to a fatty acid side chain, it belongs to a group of similarly structured bacterial antimicrobial peptides.
in vitro Colistin (2 μg/mL) is active against most strains of Escherichia coli and P. aeruginosa, and all species of Enterobacter, Salmonella, Shigella, Pasteurella, Brucella, and Bordetella. Proteus, Serratia, Providencia. Colistin inhibits 225 strains of P.aeruginosa with MIC90 and MIC50 of 6.3 μg/mL and 1.6μg/mL, respectively. Colistin sulfate is approved only for topical and oral use because of its toxicity. [1] Colistin sulfate is administered orally (tablets or syrup) for bowel decontamination and topically as a powder for the treatment of bacterial skin infections. Colistin interacts with the bacterial membrane through electrostatic interactions between the cationic polypeptide (colistin) and anionic lipopolysaccharide (LPS) molecules in the outer membrane of the gram-negative bacteria, leading to derangement of the cell membrane. Colistin displaces magnesium (Mg+2) and calcium (Ca+2), which normally stabilize the LPS molecules, from the negatively charged LPS, leading to a local disturbance of the outer membrane. Colistin has also potent anti-endotoxin activity. [2] Colistin sulfate produces a strong postantibiotic effects against Acinetobacter baumannii ranging from 2.5 hours to 7.0 hours in a concentration-dependent manner. [3]
in vivo Colistin sulfate (5%, i.m.) causes the muscle circumference to appear erythematic in mice. Colistin sulfate (i.m., 15 mg/kg/day for 5 days) causes obvious neurotoxicity to piglets with moderate granular degenerations in the epithelial tissues from kidney and liver of mice. Colistin sulfate (i.m.) at dose of 2.5 mg/kg and 5.0 mg/kg results in Cmax of 3.73 mg/mL and 6.40 mg/mL, Tmax of 32 min and 34 min, t(1/2beta) of 256 min and 264 min, and absolute bioavailability of 95.94% and 88.45% in mice. [4]

プロトコル(参考用のみ)

Selleckの高級品が、幾つかの出版された研究調査結果（以下を含む）で使われた：

Synergistic Activity of Capsaicin and Colistin Against Colistin-Resistant Acinetobacter baumannii: In Vitro/Vivo Efficacy and Mode of Action [ Front Pharmacol, 2021, 12:744494] PubMed: 34603057
Repurposing FDA-approved drugs for anti-aging therapies. [ Biogerontology, 2016, 17(5-6):907-920] PubMed: 27484416

長期の保管のために-20°Cの下で製品を保ってください。

人間や獣医の診断であるか治療的な使用のためにでない。

各々の製品のための特定の保管と取扱い情報は、製品データシートの上で示されます。大部分のSelleck製品は、推薦された状況の下で安定です。製品は、推薦された保管温度と異なる温度で、時々出荷されます。長期の保管のために必要とされてそれと異なる温度で、多くの製品は、短期もので安定です。品質を維持するが、夜通しの積荷のために最も経済的な貯蔵状況を用いてあなたの送料を保存する状況の下に、製品が出荷されることを、我々は確実とします。製品の受領と同時に、製品データシートの上で貯蔵推薦に従ってください。