has role nitrogen fertilizer urea 1728 A carbonyl group with two C-bound amine groups. The commercially available fertilizer has an analysis of 46-0-0 (N-P2O5-K2O). Carbamide E927b H2NC(O)NH2 Harnstoff Karbamid UREA Urea carbamide carbonyldiamide ur urea uree carbonic acid monocarboxylic acid amide fertilizer carbamimidic acid flour treatment agent one-carbon compound mouse metabolite Saccharomyces cerevisiae metabolite Escherichia coli metabolite human metabolite Daphnia magna metabolite