2'-Hydroxy[1,1'-biphenyl]-3-carboxylic acid

2'-Hydroxy[1,1'-biphenyl]-3-carboxylic acid is a biphenyl derivative featuring a carboxylic acid and a hydroxyl group on adjacent aromatic rings. It is used as a research reagent in studies related to transthyretin, a transport protein that carries thyroxine and retinol in blood and cerebrospinal fluid.