4-Hydroxypyridine-3-carboxaldehyde

4-Hydroxypyridine-3-carboxaldehyde

6-Bromo-5-methylpyridine-3-boronic acid

6-Bromo-5-methylpyridine-3-boronic acid

6-Chloro-5-methylpyridine-3-boronic acid

6-Chloro-5-methylpyridine-3-boronic acid

2-Chloroquinoxaline

2-Chloroquinoxaline

1,3-Dimethyl-5-nitrobarbituric acid sodium salt

1,3-Dimethyl-5-nitrobarbituric acid sodium salt

2-Hydroxyimino-3-pentanone

2-Hydroxyimino-3-pentanone

2-Hydroximino-2-cyanoacetamide

2-Hydroximino-2-cyanoacetamide

1-[4-Amino-2-(methylthio)-7-pteridinyl]-3-phenyl-1-propanone

1-[4-Amino-2-(methylthio)-7-pteridinyl]-3-phenyl-1-propanone

6-Amino-5-formamido-uracil

6-Amino-5-formamido-uracil