Why AildenafilCitrate no impurity

Nov 26, 2018

1.AildenafilCitrate and intermediates
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 134-11-2
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 1596611-04-9
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 21655-48-1
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 496835-32-6
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 496835-33-7
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 139756-02-8
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 496835-34-8
AildenafilCitrate 1510770-77-0;496835-35-9(free) intermediate： 496835-35-9

2.ROS-AildenafilCitrate

3.
Name：AildenafilCitrate
Cas#:1510770-77-0;496835-35-9(free)
Molecular Weight 680.72
Formula C23H32N6O4S • C6H8O7
Chemical Name 7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[5-[[(3R,5S)-3,5-dimethyl-1-piperazinyl]sulfonyl]-2-ethoxyphenyl]-1,6-dihydro-1-methyl-3-propyl-, rel-, 2-hydroxy- 1,2,3-propanetricarboxylate (1:1)