5-(5-CHLORO-THIOPHEN-2-YL)-2H-PYRAZOLE-3-CARBOXYLIC ACID

3-(5-Chloro-2-thienyl)-1H-pyrazole-5-carboxylic acid is used as a reactant in the preparation of pyrazolylcarbonylaminobiphenylylhydroxypentanoic acid derivatives and analogs for use as neprilysin inhibitors.