5-[[4-chloro-2-(3-phenyl-1,2,4-oxadiazol-5-yl)phenyl]azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxonicotinonitrile

5-[[4-Chloro-2-(3-phenyl-1,2,4-oxadiazol-5-yl)phenyl]azo]-1,2-dihydro-6-hydroxy-4-methyl-2-oxo-3-pyridinecarbonitrile