96-48-0
γ-丁内酯
+
141-43-5
乙醇胺
→
~94%
66857-17-8
4-hydroxy-N-(2-hydroxyethyl)butanamide
28341-54-0
4-(4-nitrophenoxy)butanoic acid
3445-11-2
N-羟乙基-2-吡咯烷酮