product Name：DESMETHYL SILDENAFIL
  • 5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- 7H-pyrazolo[4,3-d]pyrimidin-7-one; UK 103320; 5-[2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • 139755-82-1
  • C21H28N6O4S
  • 460.5498
  • InChI=1/C21H28N6O4S/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28)
  • DESMETHYL SILDENAFIL 139755-82-1
  • 1.44g/cm3
  • 158-160℃
  • 685.7°C at 760 mmHg
  • 1.683
  • 368.5°C
  • 1.17E-18mmHg at 25°C