64400-76-6
4-(2,3-Dimethoxyphenyl)butanoic Acid
→
59515-92-3
5,6-DIHYDROXY-1-TETRALONE
24039-89-2
5,6-二甲氧基-1,2,3,4-四氢1-萘酮
+
7440-44-0
碳黑