Nirmatrelvir is an antiviral medication developed by Pfizer which acts as an orally active 3C-like protease inhibitor. It is part of the nirmatrelvir/ritonavir combination sold under the brand name Paxlovid. Reference standards of Nirmatrelvir API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Nirmatrelvir - API Standards [catalogue_number] => PA 14 1360000 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 499.54 [form] => C23H32F3N5O4 [cas] => 2628280-40-8 [pslug] => 2628280-40-8-nirmatrelvir-api-pa141360000 [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 14 1360000
CAS :
Molecular Formula : C23H32F3N5O4
Molecular Weight : 499.54
stdClass Object ( [pname] => (S)-2-Amino-3-((S)-2-oxopyrrolidin-3-yl)propanamide Hydrochloride [catalogue_number] => PA 14 1361000 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C7H14ClN3O2 [cas] => 2628280-48-6 [pslug] => 2628280-48-6-s-2-amino-3-s-2-oxopyrrolidin-3-yl-propanamide-hydrochloride-pa141361000 [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 14 1361000
Molecular Formula : C7H14ClN3O2
Molecular Weight : 207.66
stdClass Object ( [pname] => (1R,2S,5S)-N-((S)-1-Amino-1-oxo-3-((S)-2-oxopyrrolidin-3-yl)propan-2-yl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361001 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 517.55 [form] => C23H34F3N5O5 [cas] => 2755812-81-6 [pslug] => 2755812-81-6-1r-2s-5s-n-s-1-amino-1-oxo-3-s-2-oxopyrrolidin-3-yl-propan-2-yl-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361001 [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 14 1361001
Molecular Formula : C23H34F3N5O5
Molecular Weight : 517.55
stdClass Object ( [pname] => (1R,2S,5S)-N-((R)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361002 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 499.54 [form] => C23H32F3N5O4 [cas] => 2755812-41-8 [pslug] => 2755812-41-8-1r-2s-5s-n-r-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361002 [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 14 1361002
stdClass Object ( [pname] => (S)-2-((1R,2S,5S)-3-((S)-3,3-Dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamido)-3-((S)-2-oxopyrrolidin-3-yl)propanoic Acid [catalogue_number] => PA 14 1361003 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 518.53 [form] => C23H33F3N4O6 [cas] => NA [pslug] => s-2-1r-2s-5s-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamido-3-s-2-oxopyrrolidin-3-yl-propanoic-acid-pa141361003 [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 14 1361003
Molecular Formula : C23H33F3N4O6
Molecular Weight : 518.53
stdClass Object ( [pname] => Methyl (S)-2-((1R,2S,5S)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamido)-3-((S)-2-oxopyrrolidin-3-yl)propanoate [catalogue_number] => PA 14 1361004 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 532.56 [form] => C24H35F3N4O6 [cas] => NA [pslug] => methyl-s-2-1r-2s-5s-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamido-3-s-2-oxopyrrolidin-3-yl-propanoate-pa141361004 [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 14 1361004
Molecular Formula : C24H35F3N4O6
Molecular Weight : 532.56
stdClass Object ( [pname] => N-((S)-1-((1R,2S,5S)-2-Cyano-6,6-dimethyl-3-azabicyclo[3.1.0]hexan-3-yl)-3,3-dimethyl-1-oxobutan-2-yl)-2,2,2-trifluoroacetamide [catalogue_number] => PA 14 1361005 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 345.37 [form] => C16H22F3N3O2 [cas] => NA [pslug] => n-s-1-1r-2s-5s-2-cyano-6-6-dimethyl-3-azabicyclo-3.1.0-hexan-3-yl-3-3-dimethyl-1-oxobutan-2-yl-2-2-2-trifluoroacetamide-pa141361005 [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 14 1361005
Molecular Formula : C16H22F3N3O2
Molecular Weight : 345.37
stdClass Object ( [pname] => (2S)-3-(2-chloropropan-2-yl)-N-((S)-1-cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-1-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)pyrrolidine-2-carboxamide [catalogue_number] => PA 14 1361006 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 535.99 [form] => C23H33ClF3N5O4 [cas] => NA [pslug] => 2s-3-2-chloropropan-2-yl-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-1-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-pyrrolidine-2-carboxamide-pa141361006 [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 14 1361006
Molecular Formula : C23H33ClF3N5O4
Molecular Weight : 535.99
stdClass Object ( [pname] => Isopropyl (S)-2-((1R,2S,5S)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamido)-3-((S)-2-oxopyrrolidin-3-yl)propanoate [catalogue_number] => PA 14 1361007 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 560.62 [form] => C26H39F3N4O6 [cas] => NA [pslug] => isopropyl-s-2-1r-2s-5s-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3.1.0-hexane-2-carboxamido-3-s-2-oxopyrrolidin-3-yl-propanoate-pa141361007 [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 14 1361007
Molecular Formula : C26H39F3N4O6
Molecular Weight : 560.62
stdClass Object ( [pname] => (2S,3S)-3-(2-Chloropropan-2-yl)-N-((S)-1-cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-1-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)pyrrolidine-2-carboxamide [catalogue_number] => PA 14 1361008 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 535.99 [form] => C23H33ClF3N5O4 [cas] => NA [pslug] => 2s-3s-3-2-chloropropan-2-yl-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-1-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-pyrrolidine-2-carboxamide-pa141361008 [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 14 1361008
stdClass Object ( [pname] => Nirmatrelvir-D9 [catalogue_number] => PA STI 089311 [category_ids] => ,98,75,76,78,70,82, [chemical_name] => [weight] => 508.59 [form] => C23H23D9F3N5O4 [cas] => NA [pslug] => nirmatrelvir-d9-pasti089311 [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 089311
Molecular Formula : C23H23D9F3N5O4
Molecular Weight : 508.59
stdClass Object ( [pname] => (R)-2-Amino-3-((R)-2-oxopyrrolidin-3-yl)propanamide Hydrochloride [catalogue_number] => PA 14 1361009 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C7H14ClN3O2 [cas] => 2889532-79-8 [pslug] => 2889532-79-8-r-2-amino-3-r-2-oxopyrrolidin-3-yl-propanamide-hydrochloride-pa141361009 [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 14 1361009
stdClass Object ( [pname] => Methyl (1R,2R,5S)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylate [catalogue_number] => PA 14 1361010 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 169.22 [form] => C9H15NO2 [cas] => 1932411-98-7 [pslug] => 1932411-98-7-methyl-1r-2r-5s-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxylate-pa141361010 [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 14 1361010
Molecular Formula : C9H15NO2
Molecular Weight : 169.22
stdClass Object ( [pname] => (1R,2S,5S)-N-((S)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-N-(2,2,2-trifluoroacetyl)-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361011 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 595.54 [form] => C25H31F6N5O5 [cas] => NA [pslug] => 1r-2s-5s-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-n-2-2-2-trifluoroacetyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361011 [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 14 1361011
Molecular Formula : C25H31F6N5O5
Molecular Weight : 595.54
stdClass Object ( [pname] => (1S,2R,5R)-N-((S)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((R)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361012 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 499.54 [form] => C23H32F3N5O4 [cas] => NA [pslug] => 1s-2r-5r-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-3-r-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361012 [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 14 1361012
stdClass Object ( [pname] => (1S,2R,5R)-N-((S)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361013 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 499.54 [form] => C23H32F3N5O4 [cas] => NA [pslug] => 1s-2r-5r-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361013 [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 14 1361013
stdClass Object ( [pname] => (1R,2S,5S)-3-((S)-2-Amino-3,3-dimethylbutanoyl)-N-((S)-1-cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide [catalogue_number] => PA 14 1361014 [category_ids] => 82,76,75,70,78 [chemical_name] => [weight] => 403.53 [form] => C21H33N5O3 [cas] => 2883654-28-0 [pslug] => 2883654-28-0-1r-2s-5s-3-s-2-amino-3-3-dimethylbutanoyl-n-s-1-cyano-2-s-2-oxopyrrolidin-3-yl-ethyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxamide-pa141361014 [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 14 1361014
Molecular Formula : C21H33N5O3
Molecular Weight : 403.53
stdClass Object ( [pname] => (1R,2S,5S)-3-((S)-2-((tert-Butoxycarbonyl)amino)-3,3-dimethylbutanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylic Acid [catalogue_number] => PA 14 1361015 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 368.47 [form] => C19H32N2O5 [cas] => 394735-37-6 [pslug] => 394735-37-6-1r-2s-5s-3-s-2-tert-butoxycarbonyl-amino-3-3-dimethylbutanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxylic-acid-pa141361015 [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 14 1361015
Molecular Formula : C19H32N2O5
Molecular Weight : 368.47
stdClass Object ( [pname] => (1R,2S,5S)-3-((S)-3,3-Dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylic Acid [catalogue_number] => PA 14 1361016 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 364.37 [form] => C16H23F3N2O4 [cas] => 2755812-45-2 [pslug] => 2755812-45-2-1r-2s-5s-3-s-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxylic-acid-pa141361016 [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 14 1361016
Molecular Formula : C16H23F3N2O4
Molecular Weight : 364.37
stdClass Object ( [pname] => (1R,2S,5S)-3-((R)-3,3-Dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxylic Acid [catalogue_number] => PA 14 1361017 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 364.37 [form] => C16H23F3N2O4 [cas] => NA [pslug] => 1r-2s-5s-3-r-3-3-dimethyl-2-2-2-2-trifluoroacetamido-butanoyl-6-6-dimethyl-3-azabicyclo-3-1-0-hexane-2-carboxylic-acid-pa141361017 [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 14 1361017
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