5-Ethyl-5-(isopentylthiomethyl)-2-thiobarbituric acid sodium salt 66968-59-0 BARBITURIC ACID, 5-ETHYL-5-(ISOPENTYLTHIOMETHYL)-2-THIO-, SODIUM SALT Sodium 5-ethyl-5-(isopentylthiomethyl)-2-thiobarbiturate