22980-67-2
acido 9H-fluorene-2,7-dicarbossilico
→
53533-21-4
9H-fluorene-2,7-dicarbonyl chloride
792-26-7
9-芴酮-2,7-二羧酸
961-27-3
2-氨基-4,5-二甲氧基苯甲腈