2,2'-Dicarboxy-N-nitrodiethylamine acid 3,3'-Nitroiminodipropionic acid 3-04-00-01292 (Beilstein Handbook Reference) 99-69-4 BRN 1795030 EINECS 202-779-4 N-(2-Carboxyethyl)-N-nitro-beta-alanine NSC 206121 Propionic acid, 3,3'-nitroiminodi- beta-Alanine, N-(2-carboxyethyl)-N-nitro-