Finasteride for Hair Loss Treatment &Prostate Disease CAS:98319-26-71. Finasteride basic Finasteride Powder Basic information Product Name Finasteride Alias Proscar, Propecia CAS No 98319-26-7 MF C23H36N2O2 MW 372.55 Purity 99.2% Appearance White or white crystalline solid. Soluble in chloroform, dimethyl sulfoxide, ethanol, methanol or propanol, insoluble in propylene glycol or polyethylene glycol 400 Usage The drug can be very effective in …