N-desmethyl Bendamustine is an active metabolite of the DNA alkylating agent bendamustine (Item No. 23693).1 N-desmethyl Bendamustine is formed through demethylation of the benzimidazole ring in bendamustine by the cytochrome P450 (CYP) isoform CYP1A2. It inhibits proliferation of non-cancerous peripheral blood leukocytes (PBLs; IC50 = 45 µM) and SU-DHL-1, SU-DHL-9, and Daudi lymphoma cells (IC50s = 270, 170, and 120 µM, respectively).WARNING This product is not for human or veterinary use.