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3-Hydroxy-4-nitrobenzaldehyde

4-Hydroxy-3-nitroacetophenone

6-Hydroxynicotinic acid

4-Hydroxynicotinic acid

2-Hydroxynicotinic acid

5-Hydroxynicotinic acid

6-Hydroxynicotinamide

2-Hydroxy-3-naphtoamide

3-Hydroxy-2-naphthoyl-ortho-phenetidide

N-(2-Hydroxynaphthoyl)-2,4-dimethoxy-5-chloroanilide