CAS: 1405-20-5, polymyxin B sulfate, polymyxin B sulfate, polymyxin B, Polymyxin B sulfate English name: Polymyxin B sulfate Specific optical rotation: -78 ～ -90º Grocery Bag,Reusable Grocery Bags,Reusable Shopping Bags,Reusable Produce Bags Ningbo Fineweather International Trade Co., Ltd. , https://www.nbfwsbag.com
Other names: polymyxin B; polymyxin B sulfate
CAS number: 1405-20-5
C55H96N16O13 · 2H2SO4 = 1385.61
Level: USP Grade
Potency: ≥6000u / mg
PH: 5.0 ～ 7.0
Loss on drying: ≤6.0%
Properties: white to almost white or slightly yellow powder; odorless or almost odorless. Has hygroscopicity. Easily soluble in water, slightly soluble in ethanol, almost insoluble in acetone, chloroform or ether. Uses: biochemical research. Polymyxin B is an anti-Gram-negative bacilli polypeptide antibiotic, which can change the membrane structure to make small molecules leak and inhibit the growth of Gram-negative bacteria. Has a bactericidal effect on E. coli. The lipid A portion bound to bacterial lipopolysaccharides. A small hole is induced in the outer cell membrane. Mode of action: Combine and interfere with the permeability of the cell plasma membrane. Antibacterial spectrum: Gram-negative bacteria.
Storage: 2 ～ 8 ℃