4-24-00-02170 (Beilstein Handbook Reference) 5-((2,2-Dimethylpropionyl)methyl)-5-isopentylbarbituric acid 69766-29-6 BARBITURIC ACID, 5-((2,2-DIMETHYLPROPIONYL)METHYL)-5-ISOPENTYL- BRN 0296792 Barbituric acid, 5-isopentyl-5-pinacolonyl-