15-Oxaheptacyclo[10.5.2.24,8.24,8.02,11.07,9.013,17]tricosa-1,11,12,13(17),17(1),18,18-heptaene-14,16-dione
CAS No. 4517-22-0
1,4:5,8-Diethenobenzo[3,4]cyclobuta[1,2-a]cyclopropa[c]cycloheptene-6,7-dicarboxylicanhydride (8CI); 1,4:5,9-Diethenocyclopropa[3',4']cyclohepta[1',2':3,4]cyclobut[1,2-f]isobenzofuran-6,8-dione(9CI)