2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-butyl-5-ethyl-, monosodium salt (9CI) 35763-44-1 77-28-1 BARBITURIC ACID, 5-n-BUTYL-5-ETHYL-, SODIUM SALT Butethal sodium Butobarbital sodium Butobarbitone sodium EINECS 252-713-3 Neonal sodium Sodium 5-butyl-5-ethylbarbiturate Sodium ethyl n-butyl barbiturate