1,1-DIMETHYLUREA 4-04-00-00224 (Beilstein Handbook Reference) 598-94-7 AI3-61297 BRN 1740666 EINECS 209-957-0 HSDB 4273 N,N-Dimethylharnstoff [German] N,N-Dimethylurea NSC 33603 Urea, 1,1-dimethyl- Urea, N,N-dimethyl- asym-Dimethylurea sym-Dimethylurea