1,2-Butylenimine 1-Methylcaprolactam 2-ETHYLAZIRIDINE 2-Ethylethyleneimine 2-Ethylethylenimine 2549-67-9 41637-81-4 5-20-01-00538 (Beilstein Handbook Reference) AI3-50403 Aziridine, 2-ethyl- BRN 0102410 Butyleneimine EINECS 219-839-0 Ethylethylenimine N-Methylcaprolactam NSC 19766