An antimetabolite of the antifolate type, Methotrexate is an chemotherapy drug and used for treating autoimmune diseases like psoriasis, rheumatoid arthritis. It causes life threatening side effects. Reference standards of Methotrexate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Methotrexate - Impurity A (Hydrochloride Salt) [catalogue_number] => PA 13 0280011 [category_ids] => ,78,75,76,82, [chemical_name] => [weight] => 228.64 [form] => C7H9ClN6O [cas] => 73978-41-3 [pslug] => 73978-41-3-2-4-diamino-6-pteridinemethanol-hydrochloride-salt-pa130280011 [latest_product] => 0 [linkproducts] => 1 [offers_id] => 8 [offers_name] => Ready Stock [offers_status] => 1 [offers_start_date] => 2024-12-16 [offers_end_date] => 2024-12-31 [pageview] => 2 [offers_slug] => ready-stock [offers_product_id] => 39989 [offers_product_code] => PA 13 0280011 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 13 0280011
CAS :
Molecular Formula : C7H9ClN6O
Molecular Weight : 228.64
stdClass Object ( [pname] => 7-Methylpteridine-2,4-diamine [catalogue_number] => PA 13 0281010 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 176.18 [form] => C7H8N6 [cas] => 4215-07-0 [pslug] => 4215-07-0-7-methylpteridine-2-4-diamine-pa130281010 [latest_product] => 0 [linkproducts] => 0 [offers_id] => 8 [offers_name] => Ready Stock [offers_status] => 1 [offers_start_date] => 2024-12-16 [offers_end_date] => 2024-12-31 [pageview] => 2 [offers_slug] => ready-stock [offers_product_id] => 39991 [offers_product_code] => PA 13 0281010 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 13 0281010
Molecular Formula : C7H8N6
Molecular Weight : 176.18
stdClass Object ( [pname] => Methotrexate - Impurity E (Freebase) [catalogue_number] => PA 13 0280051 [category_ids] => 82,78,76,75,70 [chemical_name] => [weight] => 325.33 [form] => C15H15N7O2 [cas] => 19741-14-1 [pslug] => 19741-14-1-methotrexate-impurity-e-freebase-pa130280051 [latest_product] => 0 [linkproducts] => 1 [offers_id] => 8 [offers_name] => Ready Stock [offers_status] => 1 [offers_start_date] => 2024-12-16 [offers_end_date] => 2024-12-31 [pageview] => 2 [offers_slug] => ready-stock [offers_product_id] => 39990 [offers_product_code] => PA 13 0280051 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 13 0280051
Molecular Formula : C15H15N7O2
Molecular Weight : 325.33
stdClass Object ( [pname] => Methotrexate - Impurity K [catalogue_number] => PA 13 28110 [category_ids] => 75,76,97 [chemical_name] => [weight] => 266.25 [form] => C12H14N2O5 [cas] => 4271-30-1 [pslug] => 4271-30-1-methotrexate-impurity-k-pa1328110 [latest_product] => 0 [linkproducts] => 1 [offers_id] => 8 [offers_name] => Ready Stock [offers_status] => 1 [offers_start_date] => 2024-12-16 [offers_end_date] => 2024-12-31 [pageview] => 2 [offers_slug] => ready-stock [offers_product_id] => 40253 [offers_product_code] => PA 13 28110 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 13 28110
Molecular Formula : C12H14N2O5
Molecular Weight : 266.25
stdClass Object ( [pname] => 7-Hydroxy Methotrexate-d3 [catalogue_number] => PA STI 049680 [category_ids] => ,98,76,78,70,82, [chemical_name] => [weight] => 473.46 [form] => C20H19D3N8O6 [cas] => 432545-62-5 [pslug] => 432545-62-5-7-hydroxy-methotrexate-d3-pasti049680 [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 049680
Molecular Formula : C20H19D3N8O6
Molecular Weight : 473.46
stdClass Object ( [pname] => 10-Deazaaminopterin [catalogue_number] => PA 13 0281000 [category_ids] => ,75,76,123,81,70,78,82, [chemical_name] => [weight] => 439.43 [form] => C20H21N7O5 [cas] => 52454-37-2 [pslug] => 52454-37-2-10-deazaaminopterin-pa130281000 [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 0281000
Molecular Formula : C20H21N7O5
Molecular Weight : 439.43
stdClass Object ( [pname] => 7-Cyanomethotrexate Dimethyl Ester [catalogue_number] => PA 13 0281001 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 507.51 [form] => C23H25N9O5 [cas] => 112163-39-0 [pslug] => 112163-39-0-7-cyanomethotrexate-dimethyl-ester-pa130281001 [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 0281001
Molecular Formula : C23H25N9O5
Molecular Weight : 507.51
stdClass Object ( [pname] => Methotrexate-d3 Dimethyl Ester [catalogue_number] => PA 13 0281002 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 485.52 [form] => C22H23D3N8O5 [cas] => 432545-60-3 [pslug] => 432545-60-3-methotrexate-d3-dimethyl-ester-pa130281002 [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 0281002
Molecular Formula : C22H23D3N8O5
Molecular Weight : 485.52
stdClass Object ( [pname] => 7-Hydroxy Methotrexate [catalogue_number] => PA 13 0281003 [category_ids] => ,78,75,70,76,82, [chemical_name] => [weight] => 470.45 [form] => C20H22N8O6 [cas] => 5939-37-7 [pslug] => 5939-37-7-7-hydroxy-methotrexate-pa130281003 [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 0281003
Molecular Formula : C20H22N8O6
Molecular Weight : 470.45
stdClass Object ( [pname] => (2,4-Diaminopteridin-7-yl)methanol [catalogue_number] => PA 13 0281004 [category_ids] => ,78,75,70,76,82, [chemical_name] => [weight] => 192.18 [form] => C7H8N6O [cas] => 881-33-4 [pslug] => 881-33-4-2-4-diaminopteridin-7-yl-methanol-pa130281004 [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 0281004
Molecular Formula : C7H8N6O
Molecular Weight : 192.18
stdClass Object ( [pname] => 2,4-Diaminopteridine [catalogue_number] => PA 13 0281005 [category_ids] => ,78,75,70,76,82, [chemical_name] => [weight] => 162.16 [form] => C6H6N6 [cas] => 1127-93-1 [pslug] => 1127-93-1-2-4-diaminopteridine-pa130281005 [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 0281005
Molecular Formula : C6H6N6
Molecular Weight : 162.16
stdClass Object ( [pname] => 6-Methylpteridine-2,4-diamine [catalogue_number] => PA 13 0281006 [category_ids] => ,78,75,70,76,82, [chemical_name] => [weight] => 176.18 [form] => C7H8N6 [cas] => 708-74-7 [pslug] => 708-74-7-6-methylpteridine-2-4-diamine-pa130281006 [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 0281006
stdClass Object ( [pname] => (4-Chlorobenzoyl)-L-glutamic Acid [catalogue_number] => PA 13 0281007 [category_ids] => ,78,75,70,76,82, [chemical_name] => [weight] => 285.68 [form] => C12H12ClNO5 [cas] => 57444-70-9 [pslug] => 57444-70-9-4-chlorobenzoyl-l-glutamic-acid-pa130281007 [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 0281007
Molecular Formula : C12H12ClNO5
Molecular Weight : 285.68
stdClass Object ( [pname] => Methotrexate System Suitability Mixture [catalogue_number] => PA 13 0281008 [category_ids] => ,80,71,76,75,93,78,70,82, [chemical_name] => [weight] => NA [form] => NA [cas] => NA [pslug] => methotrexate-system-suitability-mixture-pa130281008 [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 0281008
Molecular Formula : NA
Molecular Weight : NA
stdClass Object ( [pname] => Aminopterin-α-hyrazide [catalogue_number] => PA 13 0281009 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 454.45 [form] => C19H22N10O4 [cas] => 118359-33-4 [pslug] => 118359-33-4-aminopterin-alpha-hyrazide-pa130281009 [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 0281009
Molecular Formula : C19H22N10O4
Molecular Weight : 454.45
stdClass Object ( [pname] => Diethyl (4-(methylamino)benzoyl)-L-glutamate [catalogue_number] => PA 13 0281011 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 336.39 [form] => C17H24N2O5 [cas] => 2378-95-2 [pslug] => 2378-95-2-diethyl-4-methylamino-benzoyl-l-glutamate-pa130281011 [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 0281011
Molecular Formula : C17H24N2O5
Molecular Weight : 336.39
stdClass Object ( [pname] => Sodium (S)-2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)-N-nitrosobenzamido)-2-methylpentanedioate [catalogue_number] => PA 13 0281012 [category_ids] => ,70,75,76,78,82,162, [chemical_name] => [weight] => 541.44 [form] => C21H21N9Na2O6 [cas] => NA [pslug] => sodium-s-2-4-2-4-diaminopteridin-6-yl-methyl-methyl-amino-n-nitrosobenzamido-2-methylpentanedioate-pa130281012 [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 0281012
Molecular Formula : C21H21N9Na2O6
Molecular Weight : 541.44
stdClass Object ( [pname] => (4-(((2,4-Diaminopteridin-6-yl)methyl)(nitroso)amino)benzoyl)-L-glutamic Acid [catalogue_number] => PA 13 0281013 [category_ids] => 162,82,78,76,75,70 [chemical_name] => [weight] => 469.42 [form] => C19H19N9O6 [cas] => NA [pslug] => 4-2-4-diaminopteridin-6-yl-methyl-nitroso-amino-benzoyl-l-glutamic-acid-pa130281013 [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 0281013
Molecular Formula : C19H19N9O6
Molecular Weight : 469.42
stdClass Object ( [pname] => N-(4-(Methylamino)benzoyl)-N-nitroso-L-glutamic Acid [catalogue_number] => PA 13 0281014 [category_ids] => ,70,75,76,78,82,162, [chemical_name] => [weight] => 309.28 [form] => C13H15N3O6 [cas] => NA [pslug] => n-4-methylamino-benzoyl-n-nitroso-l-glutamic-acid-pa130281014 [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 0281014
Molecular Formula : C13H15N3O6
Molecular Weight : 309.28
stdClass Object ( [pname] => (4-(Methyl(nitroso)amino)benzoyl)-L-glutamic Acid [catalogue_number] => PA 13 0281015 [category_ids] => ,70,75,76,78,82,162, [chemical_name] => [weight] => 309.28 [form] => C13H15N3O6 [cas] => NA [pslug] => 4-methyl-nitroso-amino-benzoyl-l-glutamic-acid-pa130281015 [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 0281015
stdClass Object ( [pname] => N-(4-(Methyl(nitroso)amino)benzoyl)-N-nitroso-L-glutamic Acid [catalogue_number] => PA 13 0281016 [category_ids] => ,70,75,76,78,82,162, [chemical_name] => [weight] => 338.28 [form] => C13H14N4O7 [cas] => NA [pslug] => n-4-methyl-nitroso-amino-benzoyl-n-nitroso-l-glutamic-acid-pa130281016 [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 0281016
Molecular Formula : C13H14N4O7
Molecular Weight : 338.28
stdClass Object ( [pname] => Methotrexate - Impurity B (Hydrate Salt) [catalogue_number] => PA 13 0280021 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 458.44 [form] => C19H22N8O6 [cas] => 1217459-90-9 [pslug] => 1217459-90-9-methotrexate-impurity-b-hydrate-salt-pa130280021 [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 0280021
Molecular Formula : C19H22N8O6
Molecular Weight : 458.44
stdClass Object ( [pname] => Diethyl (3-(methylamino)benzoyl)-L-glutamate [catalogue_number] => PA 13 0281030 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 336.39 [form] => C17H24N2O5 [cas] => 2820151-35-5 [pslug] => 2820151-35-5-diethyl-3-methylamino-benzoyl-l-glutamate-pa130281030 [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 0281030
stdClass Object ( [pname] => Diethyl (2-(methylamino)benzoyl)-L-glutamate [catalogue_number] => PA 13 0281031 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 336.39 [form] => C17H24N2O5 [cas] => 1029980-84-4 [pslug] => 1029980-84-4-diethyl-2-methylamino-benzoyl-l-glutamate-pa130281031 [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 0281031
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