1-Imidazolidinepropionic acid, 2,5-dioxo-4-methyl-4-(2-thienyl)- 17039-42-8 2,5-Dioxo-4-methyl-4-(2-thienyl)-1-imidazolidinepropionic acid 3-(2,5-Dioxo-4-methyl-4-(2-thienyl)-1-imidazolidinyl)propanoic acid 5-Methyl-5-(2-thienyl)hydantoin-N-3-propionic acid BRN 2995765