2-Phenyl-3-(4-(pyrimidin-2-yl-aminosulfonyl)phenylazo)indole 4-((2-Phenyl-1H-indol-3-yl)azo)-N-2-pyrimidinylbenzenesulfonamide 88151-91-1 BRN 4601262 Benzenesulfonamide, 4-((2-phenyl-1H-indol-3-yl)azo)-N-2-pyrimidinyl-