Intermediate of API

Methyl 2-ethoxybenzoate

CasNo:3686-55-3

Molecular Formula:C10H12O3

Specifications:>95+%

SildefilImpurity63

CasNo:304435-83-4

Molecular Formula:C10H17N3O2

Specifications:>95+%HPLC

Ethyl 3-n-propylpyrazole-5-carboxylate

CasNo:92945-27-2

Molecular Formula:C9H14N2O2

Specifications:>95+%

1-METHYL-4-NITRO-3-PROPYL-1H-PYRAZOLE-5-CARBOXYLIC ACID

CasNo:139756-00-6

Molecular Formula:C8H11N3O4

Specifications:>95+%

Sildenafil Impurity 79

CasNo:194602-23-8

Molecular Formula:C14H20N2O5S

Specifications:>98%HPLC

2,5-Dimethyl-4-nitro-2 H -pyrazole-3-carboxylic acid

CasNo:3920-37-4

Molecular Formula:C6H7N3O4

Specifications:>99%HPLC

3-ethyl-1-methyl-1H-pyrazole-5-carboxylic acid(SALTDATA: FREE)

CasNo:26308-42-9

Molecular Formula:C7H10N2O2

Specifications:>95+%

1,3-Dimethylpyrazole-5-carboxylic acid

CasNo:5744-56-9

Molecular Formula:C6H8N2O2

Specifications:>95+%

1-Methyl-3-(2-methylpropyl)-1H-pyrazole-5-carboxylic acid ethyl ester

CasNo:133261-09-3

Molecular Formula:C11H18N2O2

Specifications:>99%HPLC

Sildenafil EP IMpurity B

CasNo:1094598-75-0

Molecular Formula:C22H30N6O5S

Specifications:>98%HPLC

Sildenafil Impurity C

CasNo:139755-91-2

Molecular Formula:C20H26N6O4S

Specifications:>99%HPLC

Sildenafil Impurity 78

CasNo:116833-23-9

Molecular Formula:C5H12N2O3S

Specifications:>98%HPLC