IUPAC:9-methyl-10-(phenylmethylidene)-1,9,12-triazatetracyclo[9.8.0.0^{2,7}.0^{13,18}]nonadeca-2,4,6,11,13,15,17-heptaene-8,19-dione
IUPAC:9-methyl-10-(phenylmethylidene)-1,9,12-triazatetracyclo[9.8.0.0^{2,7}.0^{13,18}]nonadeca-2,4,6,11,13,15,17-heptaene-8,19-dione