Intermediate of API

Chlorodenafil

CasNo:1058653-74-9

Molecular Formula:C19H21ClN4O3

Specifications:>95+%

DeMethylpiperazinyl 7-Desoxo 7-Thioxosildenafil Sulfonic Acid

CasNo:1353018-10-6

Molecular Formula:C17H20N4O4S2

Specifications:>95+%

N-Desethyl Acetildenafil

CasNo:147676-55-9

Molecular Formula:C23H30N6O3

Specifications:>95+%

Sildenafil Impurity 4

CasNo:147676-78-6

Molecular Formula:C18H20N4O4

Specifications:>96%HPLC

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

CasNo:139756-24-4

Molecular Formula:C18H21ClN4O4S

Specifications:>99%HPLC

1H-Pyrazole-5-carboxaMide, 1-Methyl-4-[(2-propoxybenzoyl)aMino]-3-propyl-

CasNo:139756-04-0

Molecular Formula:C18H24N4O3

Specifications:>95+%

2-hydroxy-5-[(4-methylpiperazine-1-)sulfonyl]benzoic acid

CasNo:960009-35-2

Molecular Formula:C12H16N2O5S

Specifications:>95+%

Sildenafil Impurity 13

CasNo:76424-56-1

Molecular Formula:C7H12N4O

Specifications:>95+%HPLC

1-METHYL-3-ISOPROPYL-1H-PYRAZOLE-5-CARBOXYLICACID

CasNo:78208-73-8

Molecular Formula:C8H12N2O2

Specifications:>95+%

3-isopropyl-1-methyl-4-nitro-1H-pyrazole-5-carboxylic acid

CasNo:78208-74-9

Molecular Formula:C8H11N3O4

Specifications:>99%HPLC

5-CHLOROSULFONYL-2-ETHOXYBENZOIC ACID

CasNo:200575-16-2

Molecular Formula:C9H9ClO5S

Specifications:>95+%

Benzoic acid, 2-ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]-, hydrochloride, compd. with N,N-diethylethanamine (1:1:1)

CasNo:215299-33-5

Molecular Formula:C20H35N3O5S

Specifications:>95+%HPLC