Itraconazole EP Impurity B

Chemical Name: rel-4-[4-[4-[4-[[(2R,4S)-2-(2,4-Dichlorophenyl)-2-(4H-1,2,4-triazol-4-ylmethyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1-piperazinyl]phenyl]-2,4-dihydro-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one

Synonym: 5-aminoisobenzofuran-1(3H)-one