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    ChemeGen ChemeGen Polymyxin B Sulfate 纯度:98% CAS:1405-20-5 (500mg/瓶) C105830 1405-20-5
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    Polymyxin B Sulfate is a cationic surfactant antibiotic agent. A mixture of polymyxins B1 and B2, increases the permeability of the cell membrane. In vitro: RB50 is resistant to killing by polymyxin B at concentrations up to 100 μg/ml.