3-Chlorothieno[2,3-b]thiophene-2-carboxylic acid

3-Chlorothieno[2,3-b]thiophene-2-carboxylic acid3-B]THIOPHENE-2-CARBOXYLIC ACID, , with CAS No. 39244-08-1, is a fragment molecule that serves as an important scaffold for molecular linking, expansion, and modification. 3-Chlorothieno[2,3-b]thiophene-2-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.