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Sildenafil N-Ethyl Analog
Sildenafil N-Ethyl Analog

CAT No: ALL-SILD-22

Chemical Name: 5-[2-Ethoxy-5-(4-eth...

Molecular Formula: C23H32N6O4S

Molecular Weight: 488.6

CAS Number: 642928-07-2

Sildenafil N-Desmethyl Thione Impurity / Desmethyl Thiosildenafil
Sildenafil N-Desmethyl Thione Impurity / Desmethyl Thiosildenafil

CAT No: ALL-SILD-21

Chemical Name: 5-[2-Ethoxy-5-(1-pip...

Molecular Formula: C21H28N6O3S2

Molecular Weight: 476.62

CAS Number: 479073-86-4

SILDENAFIL IMPURITY F
SILDENAFIL IMPURITY F

CAT No: ALL-SIL-2533

Chemical Name: 5-[2-Ethoxy-5-(piper...

Molecular Formula: C21H28N6O4S

Molecular Weight: 460.55

CAS Number: 139755-82-1

Sildenafil Isobutylpyrazolopyrimidine Impurity
Sildenafil Isobutylpyrazolopyrimidine Impurity

CAT No: ALL-SILD-17

Chemical Name: 3-(2-Methylpropyl)-1...

Molecular Formula: C9H12N4

Molecular Weight: 176.22

CAS Number: 1346600-82-5

SILDENAFIL EP IMPURITY D
SILDENAFIL EP IMPURITY D

CAT No: ALL-S03088

Chemical Name: 4-Ethoxy-3-(1-methyl...

Molecular Formula: C17H20N4O5S

Molecular Weight: 392.43

CAS Number: 1357931-55-5

Sildenafil EP Impurity B / Sildenafil Impurity B / Sildenafil N-Oxide
Sildenafil EP Impurity B / Sildenafil Impurity B / Sildenafil N-Oxide

CAT No: ALL-SIL-2347

Chemical Name: 5-[2-Ethoxy-5-[(4-me...

Molecular Formula: C22H30N6O5S

Molecular Weight: 490.58

CAS Number: 1094598-75-0

Sildenafil EP Impurity A
Sildenafil EP Impurity A

CAT No: ALL-S03589

Chemical Name: 5-[2-Ethoxy-5-[(4-me...

Molecular Formula: C23H32N6O4S

Molecular Weight: 488.6

CAS Number: 1391053-95-4

Sildenafil Di-Amide Impurity
Sildenafil Di-Amide Impurity

CAT No: ALL-SILD-11

Chemical Name: 4-(2-Ethoxybenzamido...

Molecular Formula: C17H22N4O3

Molecular Weight: 330.38

CAS Number: 139756-03-9

Sildenafil Descarbon Impurity
Sildenafil Descarbon Impurity

CAT No: ALL-SILD-10

Chemical Name: 3-(6,7-Dihydro-1-met...

Molecular Formula: C21H30N6O4S

Molecular Weight: 462.57

CAS Number: 1393816-99-3

Sildenafil Des(methylpiperazinyl) Chlorosulfone Impurity
Sildenafil Des(methylpiperazinyl) Chlorosulfone Impurity

CAT No: ALL-SILD-9

Chemical Name: 4-Ethoxy-3-(7-oxo-3-...

Molecular Formula: C16H17ClN4O4S

Molecular Weight: 396.85

CAS Number: 139756-31-3

Sildenafil Chlorosulfone O-Desethyl Impurity
Sildenafil Chlorosulfone O-Desethyl Impurity

CAT No: ALL-SILD-8

Chemical Name: 4-Hydroxy-3-(1-methy...

Molecular Formula: C15H15ClN4O4S

Molecular Weight: 382.82

CAS Number: 139756-27-7

Sildenafil Chlorosulfone 2-Methyl Isomer
Sildenafil Chlorosulfone 2-Methyl Isomer

CAT No: ALL-SILD-6

Chemical Name: 4-Ethoxy-3-(2-methyl...

Molecular Formula: C17H19ClN4O4S

Molecular Weight: 410.88

CAS Number: 501120-42-9