V-12

Mosidal

Methallatal

5-Ethyl-5-(2-methyl-2-propenyl)-2-thiobarbituric acid

5-ethyldihydro-5-(2-methylallyl)-2-thioxo-1H,5H-pyrimidine-4,6-dione

5-Ethyl-2,3-dihydro-5-(2-methyl-2-propenyl)-2-thioxo-4,6(1H,5H)-pyrimidinedione