Synonyms: 1-Piperazineacetic acid, 4-dibenzo[b,f][1,4]thiazepin-11-yl-, 2-[2-(4-dibenzo[b,f][1,4]thiazepin-11-yl-1-piperazinyl)ethoxy]ethyl ester, 2-[2-[4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl]ethoxy]ethyl 2-[4-(dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl]acetate, Quetiapine Fumarate Imp. C (EP)