492-21-7
xanthene-9-thione
→
35598-63-1
9H-Xanthen-9-amine
90-47-1
占吨酮
5934-37-2
N-xanthen-9-ylidenehydroxylamine
6229-07-8
N-benzylxanthone imine
+
108-90-7
氯苯
119-61-9
二苯甲酮
91-00-9
二苯甲胺