828922-44-7
3-bromobenzene-1,2,4,5-tetracarboxylic acid
→
828922-45-8
tetramethyl 3-bromobenzene-1,2,4,5-tetracarboxylate
1646-53-3
1-溴-2,3,5,6-四甲基苯
635-10-9
均苯四甲酸四甲酯
828922-46-9
octamethyl 1,1'-biphenyl-2,2',3,3',5,5',6,6'-octacarboxylate