3-ethyl-5-(1-methyl-(1H)-pyridin-2-ylidene)rhodanine

3-Ethyl-5-[1-methylpyridin-2(1H)-ylidene]-2-thioxothiazolidin-4-one

3-Ethyl-5-(1-methyl-1,2-dihydropyridine-2-ylidene)-2-thioxothiazolidine-4-one