SPL Set ID: f1a048d9-af57-a4a2-e053-2995a90a8663

Mupirocin ointment USP, 2% contains the RNA synthetase inhibitor antibacterial, mupirocin. 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-2H-pyran-2-crotonic acid, ester with 9-hydroxynonanoic acid. The chemical structure is: Figure 1. Structure of Mupirocin C26H44O9 M.W. 500.63 Each gram of mupirocin ointment USP, 2% contains 20 mg mupirocin in a water-miscible ointment base (polyethylene glycol ointment, N.F.) consisting of polyethylene glycol 400 and polyethylene glycol 3350. description