Name | Colistin Sulfate |
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Synonyms |
Polymyxin E
Polymyxin E Colistin Sulphate MFCD00146495 Colistin sulfate salt,Polymyxin E Colistin sulfate salt Colistin sulfate EINECS 215-034-3 Colistin (sulfate) |
Description | Colistin is a polypeptide antibiotic which inhibits gram-negative bacteria by binding to lipopolysaccharides and phospholipids in the outer cell membrane of gram-negative bacteria. |
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Related Catalog | |
In Vitro | Colistins are bactericidal to gram-negative bacteria by a detergent-like mechanism. This mechanism involves interaction with lipopolysaccharides and phospholipids of the outer membrane and electrostatic interference with the outer membrane by competitively displacing divalent cations (calcium and magnesium) from the negatively charged phosphate groups of membrane lipids[1]. Colistin (polymyxin E) owns favorable properties of rapid bacterial killing, a narrow spectrum of activity, and an associated slow development of resistance for the treatment of infections caused by multidrug-resistant gram-negative bacteria. There are two forms of colistin available commercially: colistin (sulfate) mainly for topical use and colistin methanesulfonate (sodium) for parenteral use[2]. |
In Vivo | High concentrations of colistin in rat ELF are achieved as a result of slow and sustained CMS conversion following i.t. instillation[3]. Colistin is often used in piglets but underdosing and overdosing are frequent. Under- or overdoses of colistin do not result in any major disturbance of piglet fecal microbiota and rarely select for chromosomal resistance in the dominant E. coli population[4]. |
Animal Admin | Rats: Colistin methanesulfonate (sodium) and colistin (sulfate) dosing solutions are freshly prepared in sterile 0.9% sodium chloride. For the i.v. studies, colistin methanesulfonate (CMS) or sulfate solutions are administered by a bolus injection via the jugular vein cannula. Intratracheal (i.t.) instillation is utilized as the technique for pulmonary administration. Animals are administered i.v. CMS at doses of 14 mg/kg of body weight, 28 mg/kg or 56 mg/kg. In an independent study, rats are administered i.v. colistin at doses of 0.21 mg/kg, 0.41 mg/kg, or 0.62 mg/kg[3]. |
References |
[1]. Hancock RE et al. Peptide antibiotics. Antimicrob Agents Chemother. 1999 Jun;43(6):1317-23. |
Density | 1.3±0.1 g/cm3 |
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Boiling Point | 1537.3±65.0 °C at 760 mmHg |
Melting Point | 200-220°C |
Molecular Formula | C52H100N16O17S |
Molecular Weight | 1253.51 |
Flash Point | 883.5±34.3 °C |
PSA | 573.64000 |
LogP | -3.68 |
Vapour Pressure | 0.0±0.6 mmHg at 25°C |
Index of Refraction | 1.575 |
Storage condition | 2-8°C |
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
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Symbol |
GHS06 |
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Signal Word | Danger |
Hazard Statements | H301 |
Precautionary Statements | Missing Phrase - N15.00950417 |
Personal Protective Equipment | Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges |
Hazard Codes | T:Toxic |
Risk Phrases | R25 |
Safety Phrases | S45 |
RIDADR | UN 2811 6.1/PG 3 |
WGK Germany | 3 |
RTECS | TR1500000 |
Packaging Group | III |
Hazard Class | 6.1(b) |
HS Code | 2309901000 |
HS Code | 2309901000 |
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