... )Synonyms: N,N'-Dimethylurea; symmetric Dimethylurea, N,N'-Dimethylharnstoff (German); Urea, 1,3-dimethyl-; DMU; 1,3-Dimetilurea (Spanish); 1,3 ... -Dimethylurea is used as a catalyst for condensation of methylamine with urea. 1,3-Dimethyl urea; N,N-Dimethyl ...