Intermediate of API

Sildenafil Impurity 83

CasNo:1185292-79-8

Molecular Formula:C8H13N3O

Specifications:>95+%HPLC

HydroxyhoMo Sildenafil

CasNo:139755-85-4

Molecular Formula:C23H32N6O5S

Specifications:>95+%

Sildenafil Impurity 81

CasNo:503064-95-7

Molecular Formula:C8H14N4O

Specifications:>99%HPLC

Sildenafil Impurity 47

CasNo:383427-88-1

Molecular Formula:C8H13N3O2

Specifications:>99%HPLC

Sildenafil Impurity S

CasNo:372089-76-4

Molecular Formula:C17H21N5O4S

Specifications:>99%HPLC

7H-Pyrazolo[4,3-d]pyrimidin-7-one, 5-[2-ethoxy-5-(methylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl-

CasNo:459834-16-3

Molecular Formula:C18H22N4O4S

Specifications:>95+%HPLC

SildefilImpurity59

CasNo:360068-47-9

Molecular Formula:C8H10ClN3O3

Specifications:>99%HPLC

Carbodenafil

CasNo:944241-52-5

Molecular Formula:C24H32N6O3

Specifications:>95+%

O-Desethyl-O-propyl Methisosildenafil

CasNo:1391053-82-9

Molecular Formula:C24H34N6O4S

Specifications:>95+%

Pyrazole N-DeMethyl Sildenafil

CasNo:139755-95-6

Molecular Formula:C21H28N6O4S

Specifications:>99%HPLC

5-(2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

CasNo:139756-23-3

Molecular Formula:C18H22N4O2

Specifications:>95+%HPLC

5-(2-Ethoxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

CasNo:139756-30-2

Molecular Formula:C16H18N4O2

Specifications:>95+%