3-allyl-5-[(1,4-dihydro-1,4-dimethyl-5H-tetrazol-5-ylidene)ethylidene]-2-thioxothiazolidin-4-one

5-[2-[(4,5-Dihydro-1,4-dimethyl-1H-tetrazol)-5-ylidene]ethylidene]-3-(2-propenyl)-2-thioxothiazolidin-4-one