A quinazoline derivative which is an alpha-1-selective adrenoceptor blocking agent used on once-a-day basis for therapy of mild-to-moderate hypertension. Terazosin is indicated for the treatment of symptomatic benign prostatic hyperplasia (BPH). Reference standards of Terazosin API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => 1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone-d8 [catalogue_number] => PA STI 088226 [category_ids] => ,80,71,75,78,70,82,98, [chemical_name] => [weight] => 397.50 [form] => C19H19D8N5O4 [cas] => 2732980-69-5 [pslug] => 2732980-69-5-1-4-4-amino-6-7-dimethoxy-2-quinazolinyl-1-piperazinyl-5-hydroxy-1-pentanone-d8-pasti088226 [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 STI 088226
CAS :
Molecular Formula : C19H19D8N5O4
Molecular Weight : 397.50
stdClass Object ( [pname] => [4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl][(5S)-tetrahydro-5-methyl-2-furanyl]methanone-d8 [catalogue_number] => PA STI 088227 [category_ids] => ,80,71,75,78,70,82,98, [chemical_name] => [weight] => 409.51 [form] => C20H19D8N5O4 [cas] => 2714488-83-0 [pslug] => 2714488-83-0-4-4-amino-6-7-dimethoxy-2-quinazolinyl-1-piperazinyl-5s-tetrahydro-5-methyl-2-furanyl-methanone-d8-pasti088227 [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 STI 088227
Molecular Formula : C20H19D8N5O4
Molecular Weight : 409.51
stdClass Object ( [pname] => 1-(4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)-2-hydroxypentan-1-one [catalogue_number] => PA STI 088228 [category_ids] => ,80,71,75,78,70,82,98, [chemical_name] => [weight] => 397.50 [form] => C19H19D8N5O4 [cas] => 2714408-48-5 [pslug] => 2714408-48-5-1-4-4-amino-6-7-dimethoxyquinazolin-2-yl-piperazin-1-yl-2-2-3-3-5-5-6-6-d8-2-hydroxypentan-1-one-pasti088228 [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 STI 088228
stdClass Object ( [pname] => (4-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone [catalogue_number] => PA STI 088229 [category_ids] => ,80,71,75,78,70,82,98, [chemical_name] => [weight] => 381.46 [form] => C18H15D8N5O4 [cas] => 2714485-00-2 [pslug] => 2714485-00-2-4-4-amino-6-hydroxy-7-methoxyquinazolin-2-yl-piperazin-1-yl-2-2-3-3-5-5-6-6-d8-tetrahydrofuran-2-yl-methanone-pasti088229 [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 STI 088229
Molecular Formula : C18H15D8N5O4
Molecular Weight : 381.46
stdClass Object ( [pname] => (4-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone [catalogue_number] => PA STI 088230 [category_ids] => ,80,71,75,78,70,82,98, [chemical_name] => [weight] => 381.46 [form] => C18H15D8N5O4 [cas] => 2714430-62-1 [pslug] => 2714430-62-1-4-4-amino-7-hydroxy-6-methoxyquinazolin-2-yl-piperazin-1-yl-2-2-3-3-5-5-6-6-d8-tetrahydrofuran-2-yl-methanone-pasti088230 [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 STI 088230
stdClass Object ( [pname] => 4-Amino-6,7-dimethoxyquinazolin-2(1H)-one Hydrochloride [catalogue_number] => PA 20 0111001 [category_ids] => ,70,75,76,78,82, [chemical_name] => [weight] => 257.67 [form] => C10H12ClN3O3 [cas] => 134749-43-2 [pslug] => 134749-43-2-4-amino-6-7-dimethoxyquinazolin-2-1h-one-hydrochloride-pa200111001 [latest_product] => 0 [linkproducts] => 1 [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 20 0111001
Molecular Formula : C10H12ClN3O3
Molecular Weight : 257.67
stdClass Object ( [pname] => Terazosin - API Standards [catalogue_number] => PA 20 3060000 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 387.44 [form] => C19H25N5O4 [cas] => 63590-64-7 [pslug] => 63590-64-7-terazosin-api-pa203060000 [latest_product] => 0 [linkproducts] => 1 [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 20 3060000
Molecular Formula : C19H25N5O4
Molecular Weight : 387.44
stdClass Object ( [pname] => 2-Hydroxy-1-(piperazin-1-yl)pentan-1-one [catalogue_number] => PAI 20 306002 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 186.26 [form] => C9H18N2O2 [cas] => 1537852-27-9 [pslug] => 1537852-27-9-2-hydroxy-1-piperazin-1-yl-pentan-1-one-pai20306002 [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.:PAI 20 306002
Molecular Formula : C9H18N2O2
Molecular Weight : 186.26
stdClass Object ( [pname] => Tert-butyl 4-(2-hydroxypentanoyl)piperazine-1-carboxylate [catalogue_number] => PAI 20 306001 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 286.37 [form] => C14H26N2O4 [cas] => NA [pslug] => tert-butyl-4-2-hydroxypentanoyl-piperazine-1-carboxylate-pai20306001 [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.:PAI 20 306001
Molecular Formula : C14H26N2O4
Molecular Weight : 286.37
stdClass Object ( [pname] => N'-Methyl-N,N-diphenylurea [catalogue_number] => PA 20 0111000 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 226.28 [form] => C14H14N2O [cas] => 13114-72-2 [pslug] => 13114-72-2-n-methyl-n-n-diphenylurea-pa200111000 [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 20 0111000
Molecular Formula : C14H14N2O
Molecular Weight : 226.28
stdClass Object ( [pname] => 2-Hydroxypentanoyl Chloride [catalogue_number] => PAI 20 306003 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 136.58 [form] => C5H9ClO2 [cas] => NA [pslug] => 2-hydroxypentanoyl-chloride-pai20306003 [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.:PAI 20 306003
Molecular Formula : C5H9ClO2
Molecular Weight : 136.58
stdClass Object ( [pname] => (4-Nitrosopiperazin-1-yl)(tetrahydrofuran-2-yl)methanone [catalogue_number] => PA 20 3061000 [category_ids] => ,70,75,76,78,82,162, [chemical_name] => [weight] => 213.24 [form] => C9H15N3O3 [cas] => 2470438-57-2 [pslug] => 2470438-57-2-4-nitrosopiperazin-1-yl-tetrahydrofuran-2-yl-methanone-pa203061000 [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 20 3061000
Molecular Formula : C9H15N3O3
Molecular Weight : 213.24
stdClass Object ( [pname] => (4-Nitrosopiperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone [catalogue_number] => PA STI 089737 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 221.29 [form] => C9H7D8N3O3 [cas] => NA [pslug] => 4-nitrosopiperazin-1-yl-2-2-3-3-5-5-6-6-d8-tetrahydrofuran-2-yl-methanone-pasti089737 [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 STI 089737
Molecular Formula : C9H7D8N3O3
Molecular Weight : 221.29
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