26454-53-5
9H-XANTHENE-9-CARBONYL CHLORIDE
→
~81%
72240-47-2
9H-xanthene-9-carbaldehyde
+
137144-23-1
9-(9-xanthenyl)-9-xanthenecarboxaldehyde
92-83-1
氧杂蒽
109-94-4
甲酸乙酯
82-07-5
呫吨-9-甲酸