SPL Set ID: 95c302b8-affa-431a-9b89-0506f5a098e6

Mupirocin Ointment USP, 2% contains the RNA synthetase inhibitor antibacterial, mupirocin, USP. The chemical name is (E)- (2S,3R,4R,5S) -5-[ (2S,3S,4S,5S) -2,3-epoxy-5-hydroxy-4-methylhexyl] tetrahydro-3,4-dihydroxy-β-methyl-2 H- pyran-2-crotonic acid, ester with 9-hydroxynonanoic acid. The molecular formula of mupirocin, USP is C 26 H 44 O 9 , and the molecular weight is 500.6. The structural formula of mupirocin, USP is: Figure 1. Structure of Mupirocin, USP Each gram of Mupirocin Ointment USP, 2% contains 20 mg mupirocin, USP in a water-miscible ointment base (polyethylene glycol ointment, NF) consisting of polyethylene glycol 400 and polyethylene glycol 3350. Structure_mupirocin