Intermediate of API

ETHYL 5-ISOPROPYLPYRAZOLE-3-CARBOXYLATE

CasNo:78208-72-7

Molecular Formula:C9H14N2O2

Specifications:>95+%

4-methoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-benzenesulfonyl chloride

CasNo:866256-11-3

Molecular Formula:C16H17ClN4O4S

Specifications:>95+%HPLC

Sildenafil Impurity F

CasNo:263897-18-3

Molecular Formula:C21H28N6O4S

Specifications:>97%HPLC

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

CasNo:479074-16-3

Molecular Formula:C16H18N4O2

Specifications:>98%HPLC

5-(2-Ethoxyphenyl)-1,6-dihydro-1-Methyl-3-propyl-7H-pyrazolo[4,3-d]pyriMidine-7-thione

CasNo:479074-06-1

Molecular Formula:C17H20N4OS

Specifications:>95+%HPLC

Sildenafil Impurity 152

CasNo:792969-85-8

Molecular Formula:C8H12N4O3

Specifications:>99%HPLC

Desmethyl Thiosildenafil

CasNo:479073-86-4

Molecular Formula:C21H28N6O3S2

Specifications:>95+%

Thiohomosildenafil

CasNo:479073-80-8

Molecular Formula:C23H32N6O3S2

Specifications:>99%HPLC

Propoxyphenyl Sildenafil

CasNo:877777-10-1

Molecular Formula:C23H32N6O4S

Specifications:>99%HPLC

Hydroxythioacetildenafil

CasNo:1159977-47-5

Molecular Formula:C25H34N6O3S

Specifications:>95+%HPLC

Sildenafil Aldehyde IMpurity

CasNo:845302-49-0

Molecular Formula:C17H22N4O2

Specifications:>97%HPLC

Nor-acetildenafil

CasNo:949091-38-7

Molecular Formula:C24H32N6O3

Specifications:>95+%