6-hydroxy-5-[(2-methoxy-4-nitrophenyl)azo]-2-methyl-1H-benz[de]isoquinoline-1,3(2H)-dione

6-Hydroxy-5-[(2-methoxy-4-nitrophenyl)azo]-2-methyl-1H-benzo[de]isoquinoline-1,3(2H)-dione