84207-12-5
4-hydroxy-7-(4-methylphenyl)-2-benzofuran-1,3-dione
→
~88%
89450-81-7
2-hydroxy-7-methyl-9-oxofluorene-1-carboxylic acid
84185-83-1
3-hydroxy-6-(4-methylphenyl)phthalic acid