5-[[4-(3,4-dihydro-4-oxo-2-quinazolinyl)phenyl]azo]-2,6-dihydroxy-4-methylnicotinonitrile

5-[4-(3,4-Dihydro-4-oxoquinazoline-2-yl)phenylazo]-2,6-dihydroxy-4-methylpyridine-3-carbonitrile

5-[[4-[(3,4-Dihydro-4-oxoquinazolin)-2-yl]phenyl]azo]-2,6-dihydroxy-4-methyl-3-pyridinecarbonitrile