label: 7,8-dihydro-2,2-dimethyl-6-(N-phenyl)-3-(N-phenylamino)-4-(N-phenylimino)-4H,6H,7H-benzo(a)pyran(2,3-c)phenazine
label_lc: 7,8-dihydro-2,2-dimethyl-6-(n-phenyl)-3-(n-phenylamino)-4-(n-phenylimino)-4h,6h,7h-benzo(a)pyran(2,3-c)phenazine