2-Naphthalenecarboxamide,4-[[4-[2-cyano-2-[4-[2-[4-[[2-hydroxy-3-[(1-naphthalenylamino)carbonyl]-1-naphthalenyl]azo]phenyl]ethenyl]phenyl]ethenyl]phenyl]azo]-3-hydroxy-N-1-naphthalenyl-