Synonyms: 3-Pyridinecarbonitrile,4-ethyl-1,2-dihydro-5-methyl-6-(methylthio)-2-oxo-, potassium salt (9CI);Nicotinonitrile, 4-ethyl-1,2-dihydro-5-methyl-6-(methylthio)-2-oxo-, potassiumderiv. (7CI); Nicotinonitrile,4-ethyl-1,2-dihydro-5-methyl-6-(methylthio)-2-oxo-, potassium salt (8CI)