Abstract
The title compound, C
13
H
10
BrNO
4
S, belongs to the sulfonamide class of organic compounds. The two aromatic rings are inclined at 34.30 (15)° to one another, and the carboxyl substituent lies in the plane of the benzene ring to which it is bound (maximum deviation = 0.004 Å). In the crystal structure, charactersitic carboxylic acid dimers are formed through O—H⋯O hydrogen bonds. These dimers are linked into rows down
a
by N—H⋯O interactions. Additional C—H⋯O contacts further stabilize the structure, and a close Br⋯Br(
x
, −
y
+ 1, −
z
+ 1) contact of 3.5199 (9) Å is also observed.