156537-37-0
→
~93%
42200-15-7
naphthalene-2,3,6,7-tetracarboxylic acid
1134-40-3
2,3,6,7-四甲基萘
5866-20-6
(+/-)-trans-2,3-dimethylsuccinic anhydride
95-47-6
邻二甲苯