Einecs 220-427-8

1,1'-ethylenebis(5-oxo-3-pyrrolidinecarboxylic acid)

1,1'-(ethylene)bis[5-oxopyrrolidine-3-carboxylic] acid

1,1'-(1,2-Ethanediyl)bis(5-oxo-3-pyrrolidinecarboxylic acid)