label: 6,14-dichloro-3,11-dimethyl-1,3,9,11-tetrahydro-5,13-dioxa-7,15-diazadiimidazo-(4,5-b:4',5'-m)pentacene-2,10-dione
label_lc: 6,14-dichloro-3,11-dimethyl-1,3,9,11-tetrahydro-5,13-dioxa-7,15-diazadiimidazo-(4,5-b:4',5'-m)pentacene-2,10-dione