Synonyms: | 3-Pyridinecarbonitrile,1-butyl-5-[3-(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)-2-propenylidene]-1,2,5,6-tetrahydro-4-methyl-2,6-dioxo-(9CI); Glutaconimide,N-butyl-4-[3-(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridyl)allylidene]-2-cyano-3-methyl-(8CI);1-Butyl-5-[3-(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridyl)allylidene]-1,2,5,6-tetrahydro-4-methyl-2,6-dioxonicotinonitrile |