Intermediate for Quetiapine Purity is more than 99% Product name:11-Piperazynil-Dibenzo[b,f][1,4]Thiazepine-2HCLAppearance:White crystalline powderPurity:99%Impurities:≤1%Use: Intermediate for Quetiapine. 11-Piperazynil-Dibenzo[b,f][1,4]Thiazepine-2HCL