4-Pyridinecarboxylicacid3-thietanylester

4-PYRIDYLACETIC ACID HYDROCHLORIDE

4-Hydrazinobenzene-1-sulfonamide hydrochloride

4-tert-Butylphthalic anhydride

4'-TERT-BUTYL-2',6'-DIMETHYLACETOPHENONE

4-TERT-BUTYL-3-THIOSEMICARBAZIDE