An alpha-2 adrenergic receptor agonist, Methyldopa is used for the treatment of high blood pressure in pregnancy. It is metabolized in the liver and intestines and is excreted in urine. Reference standards of Methyldopa API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Methyldopa - Impurity C (Freebase) [catalogue_number] => PA 13 70030 [category_ids] => 93,97,70,78,82 [chemical_name] => [weight] => 239.27 [form] => C12H17NO4 [cas] => 39948-18-0 [pslug] => 39948-18-0-methyldopa-impurity-c-freebase-pa1370030 [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 13 70030
CAS :
Molecular Formula : C12H17NO4
Molecular Weight : 239.27
stdClass Object ( [pname] => Methyldopa - Impurity C (Hydrochloride Salt) [catalogue_number] => PA 13 70031 [category_ids] => 82,78,70,97,93 [chemical_name] => [weight] => 275.73 [form] => C12H18ClNO4 [cas] => 5486-79-3 [pslug] => 5486-79-3-methyldopa-impurity-c-hydrochloride-salt-pa1370031 [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 13 70031
Molecular Formula : C12H18ClNO4
Molecular Weight : 275.73
stdClass Object ( [pname] => Methyldopa - Impurity D [catalogue_number] => PA 13 70040 [category_ids] => ,97,69,93,78,70,82, [chemical_name] => [weight] => 211.21 [form] => C10H13NO4 [cas] => 2799-15-7 [pslug] => 2799-15-7-methyldopa-impurity-d-pa1370040 [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 13 70040
Molecular Formula : C10H13NO4
Molecular Weight : 211.21
stdClass Object ( [pname] => α-Methyldopa Methyl Ester [catalogue_number] => PA 13 70510 [category_ids] => 97,93,70,82,78 [chemical_name] => [weight] => 225.2 [form] => C11H15NO4 [cas] => 18181-08-3 [pslug] => 18181-08-3-alpha-methyldopa-methyl-ester-pa1370510 [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 13 70510
Molecular Formula : C11H15NO4
Molecular Weight : 225.2
stdClass Object ( [pname] => Methyl 2-amino-3-(3,4-dihydroxyphenyl)propanoate [catalogue_number] => PAI 13 070001 [category_ids] => ,78,70,75,76,82, [chemical_name] => [weight] => 211.22 [form] => C10H13NO4 [cas] => 40611-00-5 [pslug] => 40611-00-5-methyl-2-amino-3-3-4-dihydroxyphenyl-propanoate-pai13070001 [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 13 070001
Molecular Weight : 211.22
stdClass Object ( [pname] => Methyl 2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)propanoate [catalogue_number] => PAI 13 070002 [category_ids] => ,78,70,75,76,82, [chemical_name] => [weight] => 311.33 [form] => C15H21NO6 [cas] => NA [pslug] => -methyl-2-tert-butoxycarbonyl-amino-3-3-4-dihydroxyphenyl-propanoate-pai13070002 [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 13 070002
Molecular Formula : C15H21NO6
Molecular Weight : 311.33
stdClass Object ( [pname] => Methyl 2-((tert-butoxycarbonyl)amino)-3-(4-hydroxy-3-methoxyphenyl)propanoate [catalogue_number] => PAI 13 070003 [category_ids] => ,78,70,75,76,82, [chemical_name] => [weight] => 325.36 [form] => C16H23NO6 [cas] => NA [pslug] => -methyl-2-tert-butoxycarbonyl-amino-3-4-hydroxy-3-methoxyphenyl-propanoate-pai13070003 [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 13 070003
Molecular Formula : C16H23NO6
Molecular Weight : 325.36
stdClass Object ( [pname] => 2-((tert-Butoxycarbonyl)amino)-3-(4-hydroxy-3-methoxyphenyl)propanoic Acid [catalogue_number] => PAI 13 070004 [category_ids] => ,78,70,75,76,82, [chemical_name] => [weight] => 311.33 [form] => C15H21NO6 [cas] => NA [pslug] => -2-tert-butoxycarbonyl-amino-3-4-hydroxy-3-methoxyphenyl-propanoic-acid-pai13070004 [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 13 070004
stdClass Object ( [pname] => Methyl 2-amino-3-(3,4-dihydroxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070005 [category_ids] => 82,78,70,75,76 [chemical_name] => [weight] => 225.24 [form] => C11H15NO4 [cas] => NA [pslug] => methyl-2-amino-3-3-4-dihydroxyphenyl-2-methylpropanoate-pai13070005 [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 13 070005
Molecular Weight : 225.24
stdClass Object ( [pname] => Methyl 2-((tert-butoxycarbonyl)amino)-3-(3,4-dihydroxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070006 [category_ids] => 76,75,70,78,82 [chemical_name] => [weight] => 325.36 [form] => C16H23NO6 [cas] => NA [pslug] => methyl-2-tert-butoxycarbonyl-amino-3-3-4-dihydroxyphenyl-2-methylpropanoate-pai13070006 [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 13 070006
stdClass Object ( [pname] => Methyl 2-((tert-butoxycarbonyl)amino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070007 [category_ids] => 82,78,70,75,76 [chemical_name] => [weight] => 339.39 [form] => C17H25NO6 [cas] => NA [pslug] => methyl-2-tert-butoxycarbonyl-amino-3-4-hydroxy-3-methoxyphenyl-2-methylpropanoate-pai13070007 [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 13 070007
Molecular Formula : C17H25NO6
Molecular Weight : 339.39
stdClass Object ( [pname] => 2-((tert-Butoxycarbonyl)amino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoic Acid [catalogue_number] => PAI 13 070008 [category_ids] => 76,75,70,78,82 [chemical_name] => [weight] => 325.36 [form] => C16H23NO6 [cas] => NA [pslug] => 2-tert-butoxycarbonyl-amino-3-4-hydroxy-3-methoxyphenyl-2-methylpropanoic-acid-pai13070008 [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 13 070008
stdClass Object ( [pname] => (S)-2-Amino-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid [catalogue_number] => PA 13 0701000 [category_ids] => 76,70,75,78,82 [chemical_name] => [weight] => 225.24 [form] => C11H15NO4 [cas] => 1269789-01-6 [pslug] => 1269789-01-6-s-2-amino-3-3-hydroxy-4-methoxyphenyl-2-methylpropanoic-acid-pa130701000 [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 13 0701000
stdClass Object ( [pname] => Methyldopa - Impurity B (Hydrochloride Salt) [catalogue_number] => PA 13 2480021 [category_ids] => ,76,75,70,78,81,123,97,82, [chemical_name] => [weight] => 245.7 [form] => C11H16ClNO3 [cas] => 35026-10-9 [pslug] => 35026-10-9-methyldopa-impurity-b-hydrochloride-salt-pa132480021 [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 13 2480021
Molecular Formula : C11H16ClNO3
Molecular Weight : 245.7
stdClass Object ( [pname] => Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(3,4-dimethoxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070009 [category_ids] => ,70, [chemical_name] => [weight] => 353.42 [form] => C18H27NO6 [cas] => 132970-17-3 [pslug] => 132970-17-3-methyl-s-2-tert-butoxycarbonyl-amino-3-3-4-dimethoxyphenyl-2-methylpropanoate-pai13070009 [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 13 070009
Molecular Formula : C18H27NO6
Molecular Weight : 353.42
stdClass Object ( [pname] => Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070010 [category_ids] => ,70, [chemical_name] => [weight] => 339.39 [form] => C17H25NO6 [cas] => NA [pslug] => methyl-s-2-tert-butoxycarbonyl-amino-3-3-hydroxy-4-methoxyphenyl-2-methylpropanoate-pai13070010 [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 13 070010
stdClass Object ( [pname] => Methyl (S)-2-((tert-butoxycarbonyl)amino)-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070011 [category_ids] => ,70, [chemical_name] => [weight] => 339.39 [form] => C17H25NO6 [cas] => NA [pslug] => methyl-s-2-tert-butoxycarbonyl-amino-3-4-hydroxy-3-methoxyphenyl-2-methylpropanoate-pai13070011 [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 13 070011
stdClass Object ( [pname] => Methyl (S)-2-amino-3-(4-hydroxy-3-methoxyphenyl)-2-methylpropanoate [catalogue_number] => PAI 13 070012 [category_ids] => ,70, [chemical_name] => [weight] => 239.27 [form] => C12H17NO4 [cas] => NA [pslug] => methyl-s-2-amino-3-4-hydroxy-3-methoxyphenyl-2-methylpropanoate-pai13070012 [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 13 070012
stdClass Object ( [pname] => (S)-2-((tert-Butoxycarbonyl)amino)-3-(3-hydroxy-4-methoxyphenyl)-2-methylpropanoic Acid [catalogue_number] => PAI 13 070013 [category_ids] => ,70, [chemical_name] => [weight] => 325.36 [form] => C16H23NO6 [cas] => NA [pslug] => s-2-tert-butoxycarbonyl-amino-3-3-hydroxy-4-methoxyphenyl-2-methylpropanoic-acid-pai13070013 [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 13 070013
stdClass Object ( [pname] => Methyldopa - Impurity D (Hydrobromide Salt) [catalogue_number] => PA 13 0700041 [category_ids] => ,97,69,93,78,70,82, [chemical_name] => [weight] => 292.13 [form] => C10H14BrNO4 [cas] => NA [pslug] => methyldopa-impurity-d-hydrobromide-salt-pa130700041 [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 13 0700041
Molecular Formula : C10H14BrNO4
Molecular Weight : 292.13
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