4586-89-4
ethyl 4-(4-methoxy)phenylbutanoate
+
95-92-1
乙二酸二乙酯
→
72907-95-0
7-methoxynaphthalene-1,2-dicarboxylic anhydride
7498-68-2
8-methoxy-4,5-dihydrobenzo[e][2]benzofuran-1,3-dione