SPL Set ID: b1274d78-1096-4ae3-8299-a2e94eaa0ea5

Itraconazole, USP is an azole antifungal agent. Itraconazole is a 1:1:1:1 racemic mixture of four diastereomers (two enantiomeric pairs), each possessing three chiral centers. It may be represented by the following structural formula and nomenclature: 3 H -1,2,4-Triazol-3-one,4-[4-[4-[4-[[2-(2,4-dichlorophenyl)-2-(1 H -1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2-4-dihydro-2-(1-methylpropyl)- or (±)-1- sec -Butyl-4-[ p -[4-[ p -[[(2 R *,4 S *)-2-(2,4-dichlorophenyl)-2-(1 H -1,2,4-triazol-1-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-Δ 2 -1,2,4-triazolin-5-one Itraconazole USP has a molecular formula of C 35 H 38 Cl 2 N 8 O 4 and a molecular weight of 705.63. It is a white or almost white powder. It is practically insoluble in water, very slightly soluble in alcohol, freely soluble in methylene chloride, and sparingly soluble in tetrahydrofuran. It has a pKa of 3.7* (* Merck Index, Fifteenth Edition ) and a log (n-octanol/water) partition coefficient of 5.66 at pH 8.1. Itraconazole capsules, USP contain 100 mg of itraconazole, USP coated on sugar spheres (composed of maize starch and sucrose). Inactive ingredients are hard gelatin capsule, hypromellose, polyethylene glycol, sugar spheres & talc. In addition, the blue opaque capsule shell contains FD&C Blue No. 1, FD&C Blue No. 2, gelatin & titanium dioxide and the pink transparent body contains D&C Red No. 28 & gelatin. The imprinting ink contains black iron oxide, potassium hydroxide, propylene glycol and shellac. Meets USP Dissolution Test 2. structural formula