4,6-(1H,5H)-Pyrimidinedione, dihydro-5-(1-methylbutyl)-5-(2-(methylthio)ethyl)-2-thioxo- 467-43-6 5-(1-Methylbutyl)-5-(2-(methylthio)ethyl)-2-thiobarbituric acid 730-68-7 METHITURAL Methitural [INN] Methituralum [INN-Latin] Metitural [INN-Spanish] Thiomethibumalum