3-(4-Methyl-1-piperazinyl)dibenzo(b,f)-1,2,4-triazolo(4,3-d)(1,4)thiazepine dimethanesulfonate 3-(4-Methylpiperazino)dibenzo(b,f)-1,2,4-triazolo(4,3-d)-1,4-thiazepine dimethanesulfonate 87213-38-5 Dibenzo(b,f)-1,2,4-triazolo(4,3-d)(1,4)thiazepine, 3-(4-methyl-1-piperazinyl)-, dimethanesulfonate