The molecule is an azobenzene consisting of diphenyldiazene having a carboxy substituent at the 4-position, a hydroxy substituent at the 3-position and a 2-pyridylaminosulphonyl substituent at the 4'-position. It has a role as a non-steroidal anti-inflammatory drug, an antiinfective agent, a gastrointestinal drug, an EC 2.5.1.18 (glutathione transferase) inhibitor and a drug allergen. It is a sulfonamide, a member of pyridines and a member of azobenzenes. It derives from a sulfanilamide.
2-hydroxy-5-[[4-(pyridin-2-ylsulfamoyl)phenyl]diazenyl]benzoic acid