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] => Sildenafil Chlorosulfonyl Impurity [catalogue_number] => PA 19 09570 [category_ids] => ,85,83,122, [chemical_name] => [weight] => 410.88 [form] => C17H19ClN4O4S [cas] => 139756-22-2 [pslug] => 139756-22-2-sildenafil-chlorosulfonyl-impurity-pa1909570 [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 09570
CAS :
Molecular Formula : C17H19ClN4O4S
Molecular Weight : 410.88
stdClass Object ( [pname] => 5-(5-Chlorosulfonyl-2-ethoxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one [catalogue_number] => PA 19 09840 [category_ids] => ,80,71,122, [chemical_name] => [weight] => 396.85 [form] => C16H17ClN4O4S [cas] => 139756-31-3 [pslug] => 139756-31-3-5-5-chlorosulfonyl-2-ethoxyphenyl-3-propyl-1-6-dihydro-7h-pyrazolo-4-3-d-pyrimidin-7-one-pa1909840 [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 09840
Molecular Formula : C16H17ClN4O4S
Molecular Weight : 396.85
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