Tadalafil Chemical Name: Cialis Synonyms: IC 351;CIALIS;ICOS 351;TADALAFIL CAS No: 171596-29-5 CBNumber: CB2236841 Molecular Formula: C22H19N3O4 Molecular Weight: 389.341 Purity: 99% Packing: 1kg/bag Quality standard: USP31/BP2005 Description: White Crystalline Powder Storage: Shading, Confined Preservation Usage: Used for the treatment of erectile dysfunction. A phosphodiesterase 5 inhibitor