23636-65-9 5,9-Epithio-1H-diacenaphtho[5,6-4,5,6:5',6'-4,5,6]diindeno[5,4-4,5:5',4'-4,5]cyclohepta[1,2-c]pyrrole-6,8(2H,5aH)-dione,5,7,8a,9-tetrahydro- 24608-31-9 4,7-Methano-1H-benzo[3,4]cyclobuta[1,2-c]pyrrole-1,3,8(2H)-trione,3a,3b,4,7,7a,7b-hexahydro-