Ethyl-2,4-dioxo-1-pyrrolidin-acetat, 1-ethoxycarbonylmethylpyrrolidine-2,4-dione, 2,4-dioxopyrrolidin-1-yl-acetic acid ethyl ester, 1-Pyrrolidineaceticacid,2,4-dioxo-,ethyl ester, ethyl 2,4-dioxopyrrolidine-1-acetate, 2,4-dioxo-pyrrolidin-1-yl ethyl acetate, EINECS 263-639-6