3-(3,4-Dihydroxyphenyl)benzaldehyde

3-(2,5-Dihydroxyphenyl)benzaldehyde

3-(2,4-Dihydroxyphenyl)benzaldehyde

3-(2,3-Dimethoxyphenyl)benzaldehyde

3-(3,5-Bis(trifluoromethyl)phenyl)benzaldehyde