Product name: Cialis (Tadalafil) [IC351] Chemical name : (6R-12aR)-2,3,6,7,12,12a-Hexahydro-2-methyl-6-(3,4-(methylenedioxy)-phenyl)-pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione CAS NO: 171596-29-5 Chemical formula: C22H19N3O4 Structural formula: Transformation nature: White crystalline powder Melting point:300-303 LOD:≤0.5% Heavy metal:≤50ppm Assay:≥99.5% Specific rotation: [a]20D=+70-72?C=1.00,CHCl3) TLC:Only one stain Main use: It is indicated for the treatment of erectile dysfunction. CAS:171596-29-5