Shanghai Sonyt Biotechnology Co., Ltd. is one of the leading manufacturers and suppliers of cas 12705-41-8 colistimethate sodium in China, also supports custom service. Welcome to wholesale bulk high quality cas 12705-41-8 colistimethate sodium from our factory. Contact us for more details.
| Product name CAS | 12705-41-8:Colistimethate sodium |
| Description | Colistimethate sodium is a chemically modified prodrug of colistin (polymyxin E). Methanesulfonation neutralizes free amino groups, significantly reducing direct nephrotoxicity and neurotoxicity while greatly improving water solubility. It slowly hydrolyzes in vivo to release active colistin, which acts on Gram-negative bacterial outer membrane LPS and phospholipids, disrupts membrane integrity and leads to bacterial lysis. It exhibits potent bactericidal activity against multidrug-resistant Gram-negative bacteria such as Pseudomonas aeruginosa and Acinetobacter baumannii. Applied in drug-resistant Gram-negative infection mechanism research, antibiotic pharmacodynamic evaluation and antibacterial drug development. |
| Purity (HPLC, %) | 90%/95%/98% |
| Average molecular weight (Da) | ~1750 (multi-component mixture) |
| Structure type | Cyclic lipopeptide prodrug, methanesulfonated modification, sodium salt form |
Product Basic Information Table
| Product Standard English Name | Product Abbreviation / Alias | Function Tags (comma-separated) | Core Structure | Molecular Formula | Exact Mass (Da) | Average MW (Da) | Cyclization Mode | Salt Form |
| Colistimethate sodium | Colistimethate; Colistin methanesulfonate; Polymyxin E methanesulfonate | Anti-MDR Gram-negative bacteria,Low-toxicity prodrug,Outer membrane disruption,Pseudomonas/Acinetobacter activity,Cyclic lipopeptide antibiotic,Severe infection agent | Cyclic heptapeptide backbone + branched fatty acid, side-chain amine methanesulfonated | Large cyclic lipopeptide multi-component, subject to actual batch MS | - | ~1750 (average) | Head-to-tail amide bond macrocyclization | Sodium methanesulfonate |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage Conditions | Short-term Storage Conditions | Liquid Stability | Solid Powder Stability |
| PEP-CMS001 | White to off-white amorphous powder | Store at -20℃, sealed, dry & protected from light, aliquoted; avoid high temperature and humidity | Stable for 1 month at 2-8℃ sealed & dry; tolerable for short-term room temperature shipping | Stable for 24h at 4℃; prone to hydrolysis at room temperature; aqueous solutions must be prepared freshly before use.Excellent water solubility, freely soluble in water and normal saline Methanesulfonyl groups slowly hydrolyze in aqueous solution to release active colistin; acid/base accelerates hydrolysis | Stable for 3 years at -20℃ under dry & dark conditions |
Functional Description
| Product Code | Frontend Short Summary (for search list display) | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Targets / Pathways |
| PEP-CMS001 | Low-toxicity cyclic lipopeptide prodrug that activates in vivo to kill MDR Gram-negative bacteria, with significantly lower nephrotoxicity than colistin sulfate | Colistimethate sodium is a classic polymyxin prodrug. By methanesulfonating free amino groups on colistin side chains, it shields the direct nephrotoxicity and neurotoxicity caused by positive charges while greatly improving water solubility. After entering the body, it slowly hydrolyzes in serum and tissues, gradually releasing biologically active free colistin. Active colistin binds to lipopolysaccharide (LPS) on the Gram-negative bacterial outer membrane via electrostatic interaction, displaces divalent cations on the membrane, disrupts outer membrane integrity, further penetrates to the inner membrane causing cytoplasmic membrane depolarization and cytoplasmic leakage, ultimately leading to bacterial death. This molecule exhibits potent bactericidal activity against clinical multidrug-resistant Gram-negative bacteria such as Pseudomonas aeruginosa, Acinetobacter baumannii and carbapenem-resistant Enterobacteriaceae, and is one of the core drugs for clinical pan-resistant Gram-negative infections.MDR bacterial infection research,Severe infection models,Gram-negative bacteria biology,Antibiotic prodrug development,Pseudomonas/Acinetobacter research,Antibacterial | MDR bacterial infection research,Severe infection models,Gram-negative bacteria biology,Antibiotic prodrug development,Pseudomonas/Acinetobacter research,Antibacterial mechanism research | Bacterial outer membrane lipopolysaccharide (LPS) / phospholipids; Outer membrane permeability disruption pathway; Bacterial plasma membrane depolarization lysis pathway |
Hot Tags: cas 12705-41-8 colistimethate sodium, China cas 12705-41-8 colistimethate sodium manufacturers, suppliers, factory, 910463-68-2, Cagrilintide, CAS 121062 08 6, CAS 137525 51 0, CAS 1415456 99 3, CAS 910463 68 2
