Deepak Nitrite Limited is a chemical manufacturing company. The company's segments include basic chemicals, fine and specialty chemicals, performance products and phenolics. The Basic Chemicals segment offers sodium nitrite, sodium nitrate, nitro toluidines, fuel additives and nitrosylsulfuric acid. The fine and specialty chemicals segment offers xylidines, oximes, coumidines and specialty agricultural chemicals. Its showcase products include optical brightener (OBA) and diaminostilbene disulfonic acid (DASDA). Its phenols provide phenol, acetone, cumene and isopropyl alcohol. The company's products serve several industries such as dyes, petrochemicals, agricultural chemicals, rubber, pharmaceuticals, paper, textiles and detergents. The company has manufacturing units at Nandesar, Dahej (Gujarat), Roha, Taloja (Maharashtra) and Hyderabad (Telangana) and its R&D unit at Nandesar (Gujarat).