sildenafil citrate
A citrate salt of Sildenafil sold under the brand name of Viagra. Sildenafil is used for the treatment of erectile dysfunction and pulmonary arterial hypertension. Sildenafil inhibits an enzyme cGMP-specific phosphodiesterase type 5 that promotes degradation of cGMP, which regulates blood flow in the penis.Reference standards of Sildenafil Citrate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
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[pname] => Sildenafil Citrate - Impurity A
[catalogue_number] => PA 19 09010
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[weight] => 488.60
[form] => C23H32N6O4S
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Sildenafil Citrate - Impurity A
Catalogue No.:PA 19 09010
Molecular Formula : C23H32N6O4S
Molecular Weight : 488.60
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[pname] => Sildenafil Citrate - Impurity B
[catalogue_number] => PA 19 09020
[category_ids] => 70,71,75,78,80,82,88
[chemical_name] =>
[weight] => 490.58
[form] => C22H30N6O5S
[cas] => 1094598-75-0
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Sildenafil Citrate - Impurity B
Catalogue No.:PA 19 09020
Molecular Formula : C22H30N6O5S
Molecular Weight : 490.58
stdClass Object
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[pname] => Sildenafil Citrate - Impurity C
[catalogue_number] => PA 19 09030
[category_ids] => ,80,71,76,75,78,70,82,88,
[chemical_name] =>
[weight] => 446.52
[form] => C20H26N6O4S
[cas] => 139755-91-2
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Sildenafil Citrate - Impurity C
Catalogue No.:PA 19 09030
Molecular Formula : C20H26N6O4S
Molecular Weight : 446.52
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[pname] => Sildenafil Citrate - Impurity D
[catalogue_number] => PA 19 09040
[category_ids] => 88,82,80,78,75,71,70
[chemical_name] =>
[weight] => 392.43
[form] => C17H20N4O5S
[cas] => 1357931-55-5
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Sildenafil Citrate - Impurity D
Catalogue No.:PA 19 09040
Molecular Formula : C17H20N4O5S
Molecular Weight : 392.43
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[pname] => Sildenafil Citrate - Impurity G
[catalogue_number] => PA 19 09070
[category_ids] => ,80,71,75,78,70,82,88,
[chemical_name] =>
[weight] => 834.96
[form] => C38H46N10O8S2
[cas] => 1346602-67-2
[pslug] => 1346602-67-2-sildenafil-citrate-impurity-g-pa1909070
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Sildenafil Citrate - Impurity G
Catalogue No.:PA 19 09070
Molecular Formula : C38H46N10O8S2
Molecular Weight : 834.96
stdClass Object
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[pname] => Sildenafil Amide Impurity Hydrochloride
[catalogue_number] => PA 19 09530
[category_ids] => ,79,71,70,75,
[chemical_name] =>
[weight] => 218.68
[form] => C8H15ClN4O
[cas] => 247584-10-7
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Sildenafil Amide Impurity Hydrochloride
Catalogue No.:PA 19 09530
Molecular Formula : C8H15ClN4O
Molecular Weight : 218.68
stdClass Object
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[pname] => Sildenafil Carboxamide Impurity
[catalogue_number] => PA 19 09550
[category_ids] => ,70,71,75,78,82,
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[weight] => 330.38
[form] => C17H22N4O3
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Sildenafil Carboxamide Impurity
Catalogue No.:PA 19 09550
Molecular Formula : C17H22N4O3
Molecular Weight : 330.38
stdClass Object
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[pname] => Sildenafil Citrate - Impurity F
[catalogue_number] => PA 19 09580
[category_ids] => 82,78,76,75,70
[chemical_name] =>
[weight] => 460.55
[form] => C21H28N6O4S
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Sildenafil Citrate - Impurity F
Catalogue No.:PA 19 09580
Molecular Formula : C21H28N6O4S
Molecular Weight : 460.55
stdClass Object
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[pname] => Propoxyphenyl Sildenafil
[catalogue_number] => PA 19 09620
[category_ids] => ,79,80,71,75,78,70,82,88,
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[weight] => 488.6
[form] => C23H32N6O4S
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[pname] => Sildenafil Methyl Sulfonate Ester Impurity
[catalogue_number] => PA 19 09670
[category_ids] => 88,82,80,79,78,76,75,71,70
[chemical_name] =>
[weight] => 406.46
[form] => C18H22N4O5S
[cas] => 2512206-40-3
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Sildenafil Methyl Sulfonate Ester Impurity
Catalogue No.:PA 19 09670
Molecular Formula : C18H22N4O5S
Molecular Weight : 406.46
stdClass Object
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[pname] => Demethylpiperazinyl Iso Sildenafil Sulfonyl Chloride
[catalogue_number] => PA 19 09690
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[weight] => 410.88
[form] => C17H19ClN4O4S
[cas] => 501120-42-9
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Demethylpiperazinyl Iso Sildenafil Sulfonyl Chloride
Catalogue No.:PA 19 09690
Molecular Formula : C17H19ClN4O4S
Molecular Weight : 410.88
stdClass Object
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[catalogue_number] => PA 19 09760
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[weight] => 478.57
[form] => C21H30N6O5S
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4-[2-Ethoxy-5-(1-piperazinylsulfonyl)benzoamido]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide
Catalogue No.:PA 19 09760
Molecular Formula : C21H30N6O5S
Molecular Weight : 478.57
stdClass Object
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[pname] => 3-[[[5-Aminocarbonyl-1-methyl-3-propyl-1H-pyrazol-4-yl]amino]carbonyl]-4-ethoxy-benzenesulfonyl Dimer
[catalogue_number] => PA 19 09960
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[weight] => 722.81
[form] => C34H42N8O8S
[cas] => 1391054-84-4
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3-[[[5-Aminocarbonyl-1-methyl-3-propyl-1H-pyrazol-4-yl]amino]carbonyl]-4-ethoxy-benzenesulfonyl Dimer
Catalogue No.:PA 19 09960
Molecular Formula : C34H42N8O8S
Molecular Weight : 722.81
stdClass Object
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[pname] => Demethylpiperazinyl Desethyl Sildenafil Sulfonyl Chloride
[catalogue_number] => PA 19 09830
[category_ids] => ,80,71,75,78,70,82,88,
[chemical_name] =>
[weight] => 382.82
[form] => C15H15ClN4O4S
[cas] => 139756-27-7
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Demethylpiperazinyl Desethyl Sildenafil Sulfonyl Chloride
Catalogue No.:PA 19 09830
Molecular Formula : C15H15ClN4O4S
Molecular Weight : 382.82
stdClass Object
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[pname] => 2-Ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]- benzoic Acid
[catalogue_number] => PA 19 0091000
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 328.38
[form] => C14H20N2O5S
[cas] => 194602-23-8
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2-Ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]- benzoic Acid
Catalogue No.:PA 19 0091000
Molecular Formula : C14H20N2O5S
Molecular Weight : 328.38
stdClass Object
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[pname] => 3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-N-[2-(methylamino)ethyl]benzenesulfonamide Hydrochloride
[catalogue_number] => PA 19 0091001
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 485
[form] => C20H29ClN6O4S
[cas] => NA
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3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-5-yl)-4-ethoxy-N-[2-(methylamino)ethyl]benzenesulfonamide Hydrochloride
stdClass Object
(
[pname] => 5-(2-Isobutyl)-4-amino-1H-pyrazole-3-carboxylic acid
[catalogue_number] => PA 19 0091003
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 183.21
[form] => C8H13N3O2
[cas] => 1093415-88-3
[pslug] => 1093415-88-3-5-2-isobutyl-4-amino-1h-pyrazole-3-carboxylic-acid-pa190091003
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5-(2-Isobutyl)-4-amino-1H-pyrazole-3-carboxylic acid
Catalogue No.:PA 19 0091003
Molecular Formula : C8H13N3O2
Molecular Weight : 183.21
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[pname] => 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
[catalogue_number] => PA 19 0091004
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 396.85
[form] => C16H17ClN4O4S
[cas] => 139756-31-3
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5-(5-Chlorosulfonyl-2-ethoxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Catalogue No.:PA 19 0091004
Molecular Formula : C16H17ClN4O4S
Molecular Weight : 396.85
stdClass Object
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[pname] => Desmethyl Thiosildenafil
[catalogue_number] => PA 19 0091005
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 476.61
[form] => C21H28N6O3S2
[cas] => 479073-86-4
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Catalogue No.:PA 19 0091005
Molecular Formula : C21H28N6O3S2
Molecular Weight : 476.61
stdClass Object
(
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[catalogue_number] => PA 19 0091006
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 319.32
[form] => C17H13N5O2
[cas] => 37762-20-2
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5-(2-(Benzyloxy)phenyl)-1,4-dihydro-7H-[1,2,3]triazolo[4,5-d]pyrimidin-7-one
Catalogue No.:PA 19 0091006
Molecular Formula : C17H13N5O2
Molecular Weight : 319.32
stdClass Object
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[catalogue_number] => PA 19 0091007
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[weight] => 176.22
[form] => C9H12N4
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3-Isobutylpyrazolo[4,3-d]pyrimidine
Catalogue No.:PA 19 0091007
Molecular Formula : C9H12N4
Molecular Weight : 176.22
stdClass Object
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[catalogue_number] => PA 19 0091008
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 686.79
[form] => C34H38N8O6S
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De(methypiperazinyl) Sildenafil Dimer
Catalogue No.:PA 19 0091008
Molecular Formula : C34H38N8O6S
Molecular Weight : 686.79
stdClass Object
(
[pname] => Sildenafil Citrate (IPRSS015)
[catalogue_number] => PA IPRSS015
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[weight] => NA
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Sildenafil Citrate (IPRSS015)
