1,4-Bis(thioxo(3,4,5-trimethoxyphenyl)methyl)piperazine 5-23-01-00080 (Beilstein Handbook Reference) 70733-80-1 BRN 0869239 Piperazine, 1,4-bis(thioxo(3,4,5-trimethoxyphenyl)methyl)-