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Tadalafil
  
Product name Tadalafil
Structure
Chemical Name White crystal (6R-trans)-6-(1,3-benzodioxol-5-yl)-2,3,6,7,12,12a-hexahydro-2-methyl-pyrazino[1',2':1,6]pyrido[3,4-b]indole-1,4-dione
CAS No. 171596-29-5
Formula C22H19N3O4
Appearance White crystal
Purity Not less than 99.0%
Package 25 kg/drug
Category PDE-5 inhibitor