15395-91-2

1,1'-Ethane-1,2-diyldipyrrolidin-2-one 2-Pyrrolidinone, 1,1'-(1,2-ethanediyl)bis- 1,1'-(Ethane-1,2-diyl)bis(pyrrolidin-2-one) 1-[2-(2-ketopyrrolidin-1-yl)ethyl]-2-pyrrolidone 1-[2-(2-oxo-1-pyrrolidinyl)ethyl]-2-pyrrolidinone 1-[2-(2-oxopyrrolidin-1-yl)ethyl]pyrrolidin-2-one