2-Nitrophenylacetonitrile

7-Diethylamino-2-oxo-2H-chromene-3-carboxylic acid

2-Bromo-6-chlorobenzoic acid

4-(Bromoacetyl)pyridine hydrobromide

5-Chlorothiophene-2-sulphonyl chloride

2,5-Dichlorobenzoyl chloride