Sub Group: Unlabeled Standards Catalog Number: 5394 Formula: C22H18N4OS CAS Number: 1649-18-9 Molecular Weight: 327.40 Synonyms: 4’-Fluoro-4-[4-(2-pyridyl)-1-piperazinyl]butyrophenone, 1-(4-Fluorophenyl)-4-(4-(2-pyridinyl)-1-piperazinyl)-1-butanone