Synonyms: Propanoic acid, 3-mercapto-, 1,1'-((4,4-dimethyl-2,5-dioxo-1,3-imidazolidinediyl)di-2,1-ethanediyl) ester;(4,4-Dimethyl-2,5-dioxo-1,3-imidazolidinediyl)di-2,1-ethanediyl 3-mercaptopropionate;3-Mercaptopropionic acid, 1,3-bis(2-hydroxyethyl)-5,5-dimethylhydantoin diester;(4,4-Dimethyl-2,5-dioxoimidazolidine-1,3-diyl)diethane-2,1-diyl)bis((3-mercaptopropionate);Propanoic acid, 3-mercapto-, (4,4-dimethyl-2,5-dioxo-1,3-imidazolidinediyl)di-2,1-ethanediyl ester;(4,4-dimethyl-2,5-dioxoimidazolidine-1,3-diyl)diethane-2,1-diyl bis(3-sulfanylpropanoate)