Tryptophan is used in the biosynthesis of proteins. It is a precursor of serotonin. It can be a precursor to niacin, albeit inefficiently, in mammals.Reference standards of Tryptophan API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => 7-Hydroxy-1,2-dimethyl-9H-pyrido[3,4-b]indolium-d3 Iodide [catalogue_number] => PA STI 048670 [category_ids] => ,100,98,93,78,70,82, [chemical_name] => [weight] => 343.18 [form] => C13H10D3IN2O [cas] => NA [pslug] => 7-hydroxy-1-2-dimethyl-9h-pyrido-3-4-b-indolium-d3-iodide-pasti048670 [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 048670
CAS :
Molecular Formula : C13H10D3IN2O
Molecular Weight : 343.18
stdClass Object ( [pname] => Indole-d6 [catalogue_number] => PA STI 053000 [category_ids] => ,80,71,98, [chemical_name] => [weight] => 123.18 [form] => C8HD6N [cas] => 104959-27-5 [pslug] => 104959-27-5-indole-d6-pasti053000 [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 053000
Molecular Formula : C8HD6N
Molecular Weight : 123.18
stdClass Object ( [pname] => 5-Hydroxy L-Tryptophan-d4 (Major) [catalogue_number] => PA STI 052010 [category_ids] => ,79,71,98,76,75,78,70,82, [chemical_name] => [weight] => 224.25 [form] => C11H8D4N2O3 [cas] => 1246818-91-6 [pslug] => 1246818-91-6-5-hydroxy-l-tryptophan-d4-major-pasti052010 [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 052010
Molecular Formula : C11H8D4N2O3
Molecular Weight : 224.25
stdClass Object ( [pname] => 5-Hydroxy Tryptophol-d4 [catalogue_number] => PA STI 052020 [category_ids] => ,98,76,75,78,70,82, [chemical_name] => [weight] => 181.22 [form] => C10H7D4NO2 [cas] => 66640-87-7 [pslug] => 66640-87-7-5-hydroxy-tryptophol-d4-pasti052020 [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 052020
Molecular Formula : C10H7D4NO2
Molecular Weight : 181.22
stdClass Object ( [pname] => 5-Hydroxy Tryptophol-d4 β-D-Glucuronide [catalogue_number] => PA STI 052030 [category_ids] => ,95,71,98,76,75,78,70,82, [chemical_name] => [weight] => 357.35 [form] => C16H15D4NO8 [cas] => NA [pslug] => 5-hydroxy-tryptophol-d4-beta-d-glucuronide-pasti052030 [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 052030
Molecular Formula : C16H15D4NO8
Molecular Weight : 357.35
stdClass Object ( [pname] => rac Kynurenine-13C2,15N [catalogue_number] => PA STI 055330 [category_ids] => ,98,76,75,78,70,82, [chemical_name] => [weight] => 211.19 [form] => C813C2H12N15NO3 [cas] => 1391051-69-6 [pslug] => 1391051-69-6-rac-kynurenine-13c2-15n-pasti055330 [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 055330
Molecular Formula : C813C2H12N15NO3
Molecular Weight : 211.19
stdClass Object ( [pname] => 2-(α-D-Mannopyranosyl)-L-tryptophan-d4 [catalogue_number] => PA STI 057710 [category_ids] => ,91,98,78,70,82, [chemical_name] => [weight] => 370.39 [form] => C17H18D4N2O7 [cas] => NA [pslug] => 2-alpha-d-mannopyranosyl-l-tryptophan-d4-pasti057710 [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 057710
Molecular Formula : C17H18D4N2O7
Molecular Weight : 370.39
stdClass Object ( [pname] => D,L-Tryptophan-13C2,15N [catalogue_number] => PA STI 085960 [category_ids] => ,97,80,71,100,98, [chemical_name] => [weight] => 207.20 [form] => C913C2H12N15NO2 [cas] => 1357002-80-2 [pslug] => 1357002-80-2-d-l-tryptophan-13c2-15n-pasti085960 [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 085960
Molecular Formula : C913C2H12N15NO2
Molecular Weight : 207.20
stdClass Object ( [pname] => D,L-Tryptophan-d3 [catalogue_number] => PA STI 086030 [category_ids] => ,97,98, [chemical_name] => [weight] => 207.24 [form] => C11H9D3N2O2 [cas] => 340257-61-6 [pslug] => 340257-61-6-d-l-tryptophan-d3-pasti086030 [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 086030
Molecular Formula : C11H9D3N2O2
Molecular Weight : 207.24
stdClass Object ( [pname] => D-Tryptophan-d5 [catalogue_number] => PA STI 086040 [category_ids] => ,97,80,71,100,98, [chemical_name] => [weight] => 209.26 [form] => C11H7D5N2O2 [cas] => 1202359-57-6 [pslug] => 1202359-57-6-d-tryptophan-d5-pasti086040 [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 086040
Molecular Formula : C11H7D5N2O2
Molecular Weight : 209.26
stdClass Object ( [pname] => L-Tryptophan-d5 [catalogue_number] => PA STI 086050 [category_ids] => ,97,98, [chemical_name] => [weight] => 209.26 [form] => C11H7D5N2O2 [cas] => 62595-11-3 [pslug] => 62595-11-3-l-tryptophan-d5-pasti086050 [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 086050
stdClass Object ( [pname] => 3-Indolepropionic-D2 Acid [catalogue_number] => PA STI 089151 [category_ids] => ,98,75,76,78,70,82, [chemical_name] => [weight] => 191.23 [form] => C11H9D2NO2 [cas] => 2469257-98-3 [pslug] => 2469257-98-3-3-indolepropionic-d2-acid-pasti089151 [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 089151
Molecular Formula : C11H9D2NO2
Molecular Weight : 191.23
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