3-ethyl-5-[(1-ethyl-1,4-dihydro-4-methyl-5H-tetrazol-5-ylidene)ethylidene]-2-thioxooxazolidin-4-one

3-Ethyl-5-[2-[(1-ethyl-4,5-dihydro-4-methyl-1H-tetrazol)-5-ylidene]ethylidene]-2-thioxooxazolidin-4-one