14900-61-9
9,9'-Spirobi[fluorene]-2,2',7,7'-tetracarboxylic dianhydride
69506-86-1
151-18-4
101257-83-9
1005174-17-3
725274-03-3
1454686-04-4
1942879-46-0
9,9'-Spirobi[fluorene]-2,2'-dicarboxylic dianhydride
1189166-58-2
1797982-51-4
2197167-50-1
186611-04-1
1446909-29-0
175391-06-7
1401863-51-1
141726-23-0
38954-64-7
89795-81-3
1374155-84-6
381218-96-8