4-Chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid

4-Chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid , with CAS No. 186519-92-6, is a fragment molecule that serves as an important scaffold for molecular linking, expansion, and modification. 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carboxylic acid provides a structural basis and research tool for the design and screening of novel drug candidates, and is commonly used in drug discovery, drug synthesis, and related research.