(1,2,3,4)Tetrathiocino(5,6-b:8,7-b')diindole, 5,10-dihydro- 13839-92-4 3,3'-Diindolyl-2,2'-tetrasulfide 5,10-Dihydro(1,2,3,4)tetrathiocino(5,6-b:8,7-b')diindole BRN 0625986