Molecular Formula: C₅₆H₁₀₀N₁₆O₁₇S
Molecular Weight: 1301.56
EINECS: 215-774-7 
Flash Point: 952.3 °C
Enthalpy of Vaporization: 272.45 kJ/mol
Boiling Point: 1651 °C at 760 mmHg
Storage tempreture: 2-8 °C
Solubility: H₂O: 50 mg/mL
Form: Powder
Structure of Polymyxin B sulfate (CAS NO.1405-20-5):

Product Category of Polymyxin B sulfate (CAS NO.1405-20-5): Interferes with Cell Membrane Permeability (Ionophores)Spectrum of Activity;PeptidesCell Signaling and Neuroscience;Antibiotics;Reagents and Supplements

 Polymyxin B sulfate (CAS NO.1405-20-5) is used for resistant gram negative infections as an antibiotic. In addition to its antibiotic function, it has been used to clear endotoxin contamination in reagents

Poison by intravenous, subcutaneous, intraperitoneal and intracerebral routes. Moderately toxic by ingestion. Mutation data reported. When heated to decomposition it emits very toxic fumes of SO_x and NO_x. See also POLYMYXIN B.
Hazard Codes: Xn
Risk Statements: 22 
R22:Harmful if swallowed.
Safety Statements: 22-24/25 
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes.

 Polymyxin B sulfate , its cas register number is 1405-20-5. It also can be called N-[3-Amino-1-[[1-[[3-amino-1-[[6,9,18-tris(2-aminoethyl)-15-benzyl-3-(1-hydroxyethyl)-12-(2-methylpropyl)-2,5,8,11,14,17,20-heptaoxo-1,4,7,10,13,16,19-heptazacyclotricos-21-yl]carbamoyl]propyl]carbamoyl]-2-hydroxy-propyl]carbamoyl]propyl]-6-methyl-octanamide sulfuric acid .