89216-72-8
7-hydroxy-9-oxoxanthene-3-carboxylic acid
+
7664-93-9
硫酸
→
89216-74-0
methyl 7-hydroxy-9-oxoxanthene-3-carboxylate
89216-68-2
7-ethoxy-9-oxoxanthene-3-carboxylic acid
89216-82-0
7-(2-hydroxypropoxy)-9-oxoxanthene-3-carboxylic acid