61066-33-9
pyrimidine-2,4,5,6(1H,3H)-tetraone
+
57-13-6
尿素
→
~87%
71886-22-1
N-carbamoyl-4-hydroxy-2,5-dioxoimidazolidine-4-carboxamide
~86%
461-72-3
海因
470-44-0
4-Hydroxy-2,5-dioxo-4-imidazolidinecarboxylic acid