SPR741 is a cationic peptide derived from polymyxin B and is a potentiator molecule. SPR741 increases the permeability of the outer membrane of Gram-negative bacteria and is used to treat severe Gram-negative bacterial infections. SPR741 inhibits multidrug-resistant Gram-negative bacteria. The spectrum of activity of the antibiotic can be widened when used in combination with SPR741.

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Synonyms/AliasNAB 741
Purity>98 %
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