94820-41-4
→
~98%
28289-95-4
3-butyl-1H-pyrimidine-2,4-dione
617-48-1
DL-苹果酸
+
592-31-4
N-丁基脲
94820-42-5
ethyl 3-butyl-2,4-dioxo-1H-pyrimidine-5-carboxylate