66123-43-1
4-(4-hydroxyphenyl)-4-oxobutanoic acid ethyl ester
+
106-94-5
溴代正丙烷
→
39496-82-7
4-氧代-4-(4-丙氧苯基)丁酸
108-30-5
丁二酸酐
622-85-5
丙氧基苯