2-(5-Bromo-3-isopropyl­sulfanyl-1-benzofuran-2-yl)acetic acid

The title compound, C(13)H(13)BrO(3)S, was prepared by alkaline hydrolysis of ethyl 2-(5-bromo-3-isopropyl­sulfanyl-1-benzofuran-2-yl)acetate. In the crystal, the carboxyl groups are involved in inter­molecular O—H⋯O hydrogen bonds, which link the mol­ecules into dimers. These dimers are further packed into stacks along the c axis by inter­molecular C—H⋯π inter­actions, and by slipped π–π inter­actions between the furan rings of adjacent mol­ecules [centroid–centroid distance = 3.472 (2) Å, inter­planar distance = 3.398 (2) Å and slippage = 0.713 (2) Å].