| 英文同义词: | 1,2-dihydro-6-hydroxy-5-[(4-methoxy-2-nitrophenyl)azo]-4-methyl-2-oxonicotinonitrile;3-Cyano-6-hydroxy-5-(4-methoxy-2-nitrophenylazo)-4-methyl-2(1H)-pyridone;3-Pyridinecarbonitrile, 1,2-dihydro-6-hydroxy-5-[2-(4-methoxy-2-nitrophenyl)diazenyl]-4-methyl-2-oxo- |