5-n-Butyl-5-ethyl-2-thiobarbituric acid sodium salt 64058-02-2 BARBITURIC ACID, 5-n-BUTYL-5-ETHYL-2-THIO-, SODIUM SALT Barbituric acid, 5-butyl-5-ethyl-2-thio-, sodium salt Sodium n-butylethyl thiobarbiturate