5-(Ethylthiomethyl)-5-isobutyl-2-thiobarbituric acid sodium salt 67051-09-6 BARBITURIC ACID, 5-(ETHYLTHIOMETHYL)-5-ISOBUTYL-2-THIO-, SODIUM SALT Sodium 5-(ethylthiomethyl)-5-isobutyl-2-thiobarbiturate