2404-75-3
1-丁基膦酸二乙酯
+
28341-54-0
4-(4-nitrophenoxy)butanoic acid
→
3015-74-5
1-[butyl(ethoxy)phosphoryl]oxy-4-nitrobenzene
100-02-7
4-硝基苯酚
5284-11-7
Phosphonochloridic acid, butyl-, ethyl ester