128-53-0 1H-PYRROLE-2,5-DIONE, 1-ETHYL- 5-21-10-00006 (Beilstein Handbook Reference) AI3-50085 BRN 0112448 EINECS 204-892-4 Ethylmaleimide Maleic acid N-ethylimide Maleimide, N-ethyl- Maleimide, N-ethyl- (8CI) N-Ethylmaleimide NEM NSC 7638 USAF B-121