Description General description Dibenz [b,f]azepine-5-carbonyl chloride or 5H-dibenz [b,f]azepine-5-carbonyl chloride is a tricyclic heterocyclic compound that can be synthesized from 5H-dibenz[ b,f]azepine. Application Dibenz [b,f]azepine-5-carbonyl chloride may be used in the preparation of trans-10,11-dibromo-10,11-dihydro-5H-dibenz[b,f]azepine-5-carbonyl chloride via bromination using bromine. It may also be used to prepare urea derivatives, which are potent P2X4 receptor (purinergic receptor) antagonists. Packaging 5 g in glass bottle