N-[4-[2,4-Bis(1,1-dimethylpropyl)phenoxy]butyl]-1-hydroxy-4-[[[3-[[[5-hydroxy-8-[[2-(methylsulfonyl)-4-nitrophenyl]azo]-1-naphthalenyl]amino]sulfonyl]phenyl]sulfonyl]amino]-2-naphthalenecarboxamide