85-44-9
苯酐
+
99-96-7
乙酰水杨酸杂质A
→
~66%
25186-68-9
4-hydroxy-9,10-dioxoanthracene-1-carboxylic acid
39008-90-7
1-hydroxy-4-methylanthracene-9,10-dione
7664-93-9
硫酸