1,1-Diethylurea 4-04-00-00380 (Beilstein Handbook Reference) 634-95-7 AI3-61341 BRN 1747730 EINECS 211-220-3 N,N-Diethylurea NSC 165657 UREA, 1,1-DIETHYL- Urea, N,N-diethyl- asym-Diethylurea