1,1,3,3-Tetramethylurea 4-04-00-00225 (Beilstein Handbook Reference) 632-22-4 AI3-50988 BRN 0773898 EINECS 211-173-9 HSDB 129 N,N,N',N'-Tetramethylurea NSC 91488 TETRAMETHYLUREA TMU Temur Tetramethyluree [French] Urea, 1,1,3,3-tetramethyl- Urea, tetramethyl-