Thermal decomposition of this compound is the first step in the reduction of NOX compounds by diesel exhaust fluid. A sulfur analog of this compound can test for the presence of transplatin in samples of the drug cisplatin in the Kurnakov test. A mixture of this compound and choline chloride was the first deep eutectic solvent. James Sumner proved enzymes were proteins by (*) crystallizing an enzyme that acts on this molecule. A radiolabeled variant of this compound is used to detect H. pylori bacteria. (10[2])Asymmetric versions of this compound are produced by reacting primary amines with phosgene. The first artificial synthesis of an organic (10[1])compound (10[3])from inorganic materials (10[1])was (10[1])Friedrich Wohler’s synthesis of this compound. For 10 points, name this nitrogenous compound secreted in urine. (10[1])■END■