67-56-1
甲醇
+
7423-25-8
5-oxa-nonanedioic acid
→
5373-91-1
methyl 4-(4-methoxy-4-oxobutoxy)butanoate
854831-05-3
2,2'-(3-oxa-pentanediyl)-di-malonic acid
77-76-9
2,2-二甲氧基丙烷