6-Chloropyridine-2-sulfonic acid

6-Chloropyridine-2-sulfonic acid

3-Pyridylglyoxal

3-Pyridylglyoxal

5-Chloroindole-3-carboxylic acid

5-Chloroindole-3-carboxylic acid

3,6-Octandione

3,6-Octandione

2-(4-Methylphenyl)benzothiazole

2-(4-Methylphenyl)benzothiazole

6,6'-Dimethyl-3,3'-bipyridazine

6,6′-Dimethyl-3,3′-bipyridazine

1-Methyl-4-(phenylazo)-quinolinium perchlorate

1-Methyl-4-(phenylazo)-quinolinium perchlorate

Ethyl 4,6-dichloronicotinate

Ethyl 4,6-dichloronicotinate

4-Hydroxy-1,5-naphthyridine

4-Hydroxy-1,5-naphthyridine