25539-20-2
2-苯氧基对苯二甲酸
→
825649-24-9
N,N-diethyl-9-oxoxanthene-3-carboxamide
106269-39-0
9-oxoxanthene-3-carboxylic acid
108-95-2
苯酚
586-35-6
2-溴四苯醌
109-89-7
二乙胺
+
115818-25-2
9-oxo-9H-xanthene-3-carbonyl chloride