86-73-7
芴
+
62-23-7
对硝基苯甲酸
→
~34%
20852-57-7
9H-fluoren-2-yl-(4-nitrophenyl)methanone
10364-96-2
1-(4-nitrobenzoyl) imidazole
~15%
5366-37-0
4-nitrobenzoic acid 2-pyridinyl ester
~9%