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QS041401
Synonyms: 5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-3-isobutyl-1-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one
Molecular Formula
C23H32N6O4S
Molecular Weight
488.6
CAS No.
1391053-95-4
QS040674
Sildenafil Impurity 74
Molecular Formula: C9H10O6S
Molecular Weight: 246.24
CAS No.: 2021224-02-0
QS041401
Sildenafil EP Impurity A
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAS No.: 1391053-95-4
QS041402
Sildenafil Impurity B
Molecular Formula: C23H32N6O5S
Molecular Weight: 504.6
CAS No.: NA
QS041403
Sildenafil Impurity C;Homosildenafil
Molecular Formula: C23H32N6O4S
Molecular Weight: 488.6
CAS No.: 642928-07-2
QS041404
Sildenafil Impurity D
Molecular Formula: C17H19ClN4O4S
Molecular Weight: 410.88
CAS No.: 139756-22-2
QS041405
Sildenafil Impurity E
Molecular Formula: C18H24N4O2
Molecular Weight: 328.41
CAS No.: [NA]
QS041406
Sildenafil Impurity F
Molecular Formula: C17H20N4O2
Molecular Weight: 312.37
CAS No.: 139756-21-1
QS040687
Sildenafil Impurity 87
Molecular Formula: C17H22N4O3
Molecular Weight: 330.38
CAS No.: 501120-38-3
QO041905
Ondansetron EP Impurity E; Sildenafil EP Impurity E; Clotrimazole EP Impurity D; Enalapril maleate EP Impurity I; Bifonazole EP Impurity C;Flutrimazole EP Impurity A
Molecular Formula: C3H4N2
Molecular Weight: 68.08
CAS No.: 288-32-4
QS040602
Sildenafil EP Impurity B
Molecular Formula: C22H30N6O5S
Molecular Weight: 490.58
CAS No.: 1094598-75-0
