1,2-Dihydro-6-hydroxy-5-((4-(4-(isopropyl)benzoyl)phenyl)azo)-4-methyl-2-oxonicotinonitrile 3-Pyridinecarbonitrile, 1,2-dihydro-6-hydroxy-4-methyl-5-((4-(4-(1-methylethyl)benzoyl)phenyl)azo)-2-oxo- 73157-52-5 EINECS 277-305-2