Bendamostine hydrochloride was first developed by ozegowski and his colleagues in the microbial experimental Association in Jena, Germany in the early 1860s. The initial purpose was to connect an alkylated nitrogen mustard (a non effective alkylating agent) with a purine and an amino acid. Compared with nitrogen mustard phenylbutyrate, the main advantage of the newly synthesized compound is its water solubility. It was widely used, but until the end of the cold war, the drug has been carried out in Europe for many single drugs or other drugs for the treatment of various hematological malignancies or non Hodgkin's lymphoma, multiple myeloma, CLL and breast cancer. The clinical effect is very significant, significantly reducing the rate of recurrence and mortality, and has little side effects. Good security. So far, bendamostine hydrochloride single drug or combined treatment has been designated as the first-line or second-line treatment option for a variety of hematological malignancies by European and American clinical guidelines.