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.
stdClass Object ( [pname] => O-Desethyl-O-propyl Methisosildenafil [catalogue_number] => PA 19 09600 [category_ids] => ,80,74,71,78,70,82, [chemical_name] => [weight] => 502.63 [form] => C24H34N6O4S [cas] => 1391053-82-9 [pslug] => 1391053-82-9-o-desethyl-o-propyl-methisosildenafil-pa1909600 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09600
CAS :
Molecular Formula : C24H34N6O4S
Molecular Weight : 502.63
stdClass Object ( [pname] => Propoxyphenyl-thiohydroxyhomosildenafil [catalogue_number] => PA 19 09800 [category_ids] => ,79,80,74,71,88, [chemical_name] => [weight] => 534.69 [form] => C24H34N6O4S2 [cas] => 479073-90-0 [pslug] => 479073-90-0-propoxyphenyl-thiohydroxyhomosildenafil-pa1909800 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09800
Molecular Formula : C24H34N6O4S2
Molecular Weight : 534.69
stdClass Object ( [pname] => Thiodimethylsildenafil [catalogue_number] => PA 19 09810 [category_ids] => ,79,80,76,74,71,88, [chemical_name] => [weight] => 504.67 [form] => C23H32N6O3S2 [cas] => 1260112-90-0 [pslug] => 1260112-90-0-thiodimethylsildenafil-pa1909810 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09810
Molecular Formula : C23H32N6O3S2
Molecular Weight : 504.67
stdClass Object ( [pname] => Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate [catalogue_number] => PA 19 09880 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 420.48 [form] => C19H24N4O5S [cas] => 1971915-89-5 [pslug] => 1971915-89-5-ethyl-4-ethoxy-3-1-methyl-7-oxo-3-propyl-6-7-dihydro-1h-pyrazolo-4-3-d-pyrimidin-5-yl-benzenesulfonate-pa1909880 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09880
Molecular Formula : C19H24N4O5S
Molecular Weight : 420.48
stdClass Object ( [pname] => 2-Ethoxy-5-(ethoxysulfonyl)benzoic Acid [catalogue_number] => PA 19 09890 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 274.29 [form] => C11H14O6S [cas] => 2731926-23-9 [pslug] => 2731926-23-9-2-ethoxy-5-ethoxysulfonyl-benzoic-acid-pa1909890 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09890
Molecular Formula : C11H14O6S
Molecular Weight : 274.29
stdClass Object ( [pname] => Ethyl 2-ethoxy-5-(ethoxysulfonyl)benzoate [catalogue_number] => PA 19 09900 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 302.34 [form] => C13H18O6S [cas] => NA [pslug] => ethyl-2-ethoxy-5-ethoxysulfonyl-benzoate-pa1909900 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09900
Molecular Formula : C13H18O6S
Molecular Weight : 302.34
stdClass Object ( [pname] => Methyl 2-ethoxy-5-(methoxysulfonyl)benzoate [catalogue_number] => PA 19 09910 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 274.29 [form] => C11H14O6S [cas] => NA [pslug] => methyl-2-ethoxy-5-methoxysulfonyl-benzoate-pa1909910 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09910
stdClass Object ( [pname] => 2-Ethoxy-5-((4-ethylpiperazin-1-yl)sulfonyl)benzoic Acid [catalogue_number] => PA 19 09920 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 342.41 [form] => C15H22N2O5S [cas] => 1245644-35-2 [pslug] => 1245644-35-2-2-ethoxy-5-4-ethylpiperazin-1-yl-sulfonyl-benzoic-acid-pa1909920 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09920
Molecular Formula : C15H22N2O5S
Molecular Weight : 342.41
stdClass Object ( [pname] => 5-(2-methoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one [catalogue_number] => PA 19 09930 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 460.55 [form] => C21H28N6O4S [cas] => 263897-18-3 [pslug] => 263897-18-3-5-2-methoxy-5-4-methylpiperazin-1-yl-sulfonyl-phenyl-1-methyl-3-propyl-1-6-dihydro-7h-pyrazolo-4-3-d-pyrimidin-7-one-pa1909930 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09930
Molecular Formula : C21H28N6O4S
Molecular Weight : 460.55
stdClass Object ( [pname] => 4-(2-Methoxy-5-((4-methylpiperazin-1-yl)sulfonyl)benzamido)-1-methyl-3-propyl-1H-pyrazole-5-carboxamide [catalogue_number] => PA 19 09940 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 478.57 [form] => C21H30N6O5S [cas] => 263897-17-2 [pslug] => 263897-17-2-4-2-methoxy-5-4-methylpiperazin-1-yl-sulfonyl-benzamido-1-methyl-3-propyl-1h-pyrazole-5-carboxamide-pa1909940 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09940
Molecular Formula : C21H30N6O5S
Molecular Weight : 478.57
stdClass Object ( [pname] => 4-(2-Methoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazole-5-carboxamide [catalogue_number] => PA 19 09950 [category_ids] => ,74,71,78,70,82,88, [chemical_name] => [weight] => 435.54 [form] => C20H29N5O4S [cas] => NA [pslug] => 4-2-methoxy-5-4-methylpiperazin-1-yl-sulfonyl-phenyl-1-methyl-3-propyl-1h-pyrazole-5-carboxamide-pa1909950 [latest_product] => 0 [linkproducts] => 0 [offers_id] => [offers_name] => [offers_status] => [offers_start_date] => [offers_end_date] => [pageview] => [offers_slug] => [offers_product_id] => [offers_product_code] => [offers_master_id] => [offer_percentage] => [offers_product_main_cat] => )
Catalogue No.:PA 19 09950
Molecular Formula : C20H29N5O4S
Molecular Weight : 435.54
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