4-[(9,10-dihydro-9,10-dioxo-1-anthryl)azo]-3-hydroxy-N-phenylnaphthalene-2-carboxamide

4-[[(9,10-Dihydro-9,10-dioxoanthracen)-1-yl]azo]-3-hydroxy-N-phenyl-2-naphthalenecarboxamide