英文别名:
1,2-dihydro-6-hydroxy-4-methyl-2-oxo-5-[(p-tolyl)azo]nicotinonitrile;1,2-dihydro-6-hydroxy-4-methyl-5-[(4-methylphenyl)azo]-2-oxo-3-Pyridinecarbonitrile;2-Oxo-4-methyl-5-[(4-methylphenyl)azo]-6-hydroxy-1,2-dihydro-3-pyridinecarbonitrile;3-Cyano-6-hydroxy-4-methyl-5-(4-methylphenylazo)-2(1H)-pyridone;3-Pyridinecarbonitrile,1,2-dihydro-6-hydroxy-4-methyl-5-[2-(4-methylphenyl)diazenyl]-2-oxo-