Imiquimod (maleate) (Standard) is the analytical standard of Imiquimod (maleate). This product is intended for research and analytical applications. Imiquimod maleate (R 837 maleate), an immune response modifier, is a selective toll like receptor 7 (TLR7) agonist. Imiquimod maleate exhibits antiviral and antitumor effects in vivo. Imiquimod maleate can be used for the research of external genital, perianal warts, cancer and COVID-19[1][2].