Metiapine ,its CAS NO. is 5800-19-1,the synonyms is 2-Methyl-11-(4-methyl-1-piperazinyl)dibenzo(b,f)(1,4)thiazepine ; BRN 0833849 ; Dibenzo(b,f)(1,4)thiazepine, 2-methyl-11-(4-methyl-1-piperazinyl)- ; Metiapinum ; UNII-775D6D91J8 .