109902-07-0
1-methylthio-1-butanol-2-one
+
35011-47-3
2,4,5-三氨基-6-羟基嘧啶硫酸盐
→
25716-33-0
2-amino-7-ethyl-1H-pteridin-4-one
25716-32-9
2-amino-6-ethyl-1H-pteridin-4-one