Also known as L-Dopa which is an amino acid that acts as a precursor for neurotransmitters catecholamines (dopamine, norepinephrine, and epinephrine). Levodopa is used in the treatment of Parkinson's disease and dopamine-responsive dystonia. Reference standards of Levodopa API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Levodopa - API Standards [catalogue_number] => PA 12 12000 [category_ids] => 97,93,69,70,78,82 [chemical_name] => [weight] => 197.19 [form] => C9H11NO4 [cas] => 59-92-7 [pslug] => 59-92-7-levodopa-api-pa1212000 [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 12 12000
CAS :
Molecular Formula : C9H11NO4
Molecular Weight : 197.19
stdClass Object ( [pname] => 6-Hydroxy-DL-DOPA [catalogue_number] => PA 12 0121002 [category_ids] => ,97,93,69,70,78,82, [chemical_name] => [weight] => 213.19 [form] => C9H11NO5 [cas] => 21373-30-8 [pslug] => 21373-30-8-6-hydroxy-dl-dopa-pa120121002 [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 12 0121002
Molecular Formula : C9H11NO5
Molecular Weight : 213.19
stdClass Object ( [pname] => L-Dopa methyl ester Hydrochloride [catalogue_number] => PA 12 0121003 [category_ids] => ,97,93,69,78,82, [chemical_name] => [weight] => 247.68 [form] => C10H14ClNO4 [cas] => 1421-65-4 [pslug] => 1421-65-4-l-dopa-methyl-ester-hydrochloride-pa120121003 [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 12 0121003
Molecular Formula : C10H14ClNO4
Molecular Weight : 247.68
stdClass Object ( [pname] => L-DOPA ethyl ester Hydrochloride [catalogue_number] => PA 12 0121004 [category_ids] => ,97,93,69,78,82, [chemical_name] => [weight] => 261.7 [form] => C11H16ClNO4 [cas] => 39740-30-2 [pslug] => 39740-30-2-l-dopa-ethyl-ester-hydrochloride-pa120121004 [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 12 0121004
Molecular Formula : C11H16ClNO4
Molecular Weight : 261.7
stdClass Object ( [pname] => (1S,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid [catalogue_number] => PA 12 0121005 [category_ids] => ,69,70,78,82, [chemical_name] => [weight] => 267.24 [form] => C12H13NO6 [cas] => 2259692-12-9 [pslug] => 2259692-12-9-1s-3s-6-7-dihydroxy-1-methyl-1-2-3-4-tetrahydroisoquinoline-1-3-dicarboxylic-acid-pa120121005 [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 12 0121005
Molecular Formula : C12H13NO6
Molecular Weight : 267.24
stdClass Object ( [pname] => (1R,3S)-6,7-Dihydroxy-1-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dicarboxylic Acid [catalogue_number] => PA 12 0121006 [category_ids] => ,69,70,78,82, [chemical_name] => [weight] => 267.24 [form] => C12H13NO6 [cas] => 2259692-11-8 [pslug] => 2259692-11-8-1r-3s-6-7-dihydroxy-1-methyl-1-2-3-4-tetrahydroisoquinoline-1-3-dicarboxylic-acid-pa120121006 [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 12 0121006
stdClass Object ( [pname] => L-Dopaquinone [catalogue_number] => PA 12 0121007 [category_ids] => ,69,70,78,82, [chemical_name] => [weight] => 195.17 [form] => C9H9NO4 [cas] => 25520-73-4 [pslug] => 25520-73-4-l-dopaquinone-pa120121007 [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 12 0121007
Molecular Formula : C9H9NO4
Molecular Weight : 195.17
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