89216-62-6
7-methoxy-9-oxoxanthene-3-carboxylic acid
→
89216-72-8
7-hydroxy-9-oxoxanthene-3-carboxylic acid
89216-74-0
methyl 7-hydroxy-9-oxoxanthene-3-carboxylate
89216-80-8
7-(2-hydroxyethoxy)-9-oxoxanthene-3-carboxylic acid