67-56-1
甲醇
+
60546-62-5
6-溴苯并[d][1,3]二氧代-5-羧酸
→
7168-93-6
6-methoxy-1,3-benzodioxole-5-carboxylic acid
82146-04-1
methyl 6-hydroxybenzo[d][1,3]dioxole-5-carboxylate