Used for the treatment of toxoplasmosis ( a parasitic disease) and cystoisosporiasis (human intestinal parasitic disease ) in combination with leucovorin. It works by inhibiting the synthesis of RNA and DNA in many species. A dihydrofolate reductase inhibitor.Reference standards of Pyrimethamine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Pyrimethamine - Impurity B [catalogue_number] => PA 20 57530 [category_ids] => 82,80,79,78,70 [chemical_name] => [weight] => 234.68 [form] => C11H11ClN4 [cas] => 3275-44-3 [pslug] => 3275-44-3-pyrimethamine-impurity-b-pa2057530 [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] => 43360 [offers_product_code] => PA 20 57530 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 20 57530
CAS :
Molecular Formula : C11H11ClN4
Molecular Weight : 234.68
stdClass Object ( [pname] => Pyrimethamine - API Standards [catalogue_number] => PA 43 01000 [category_ids] => ,70,71,78,79,82,83,85, [chemical_name] => [weight] => 248.71 [form] => C12H13ClN4 [cas] => 58-14-0 [pslug] => 58-14-0-pyrimethamine-api-pa4301000 [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] => 48262 [offers_product_code] => PA 43 01000 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 43 01000
Molecular Formula : C12H13ClN4
Molecular Weight : 248.71
stdClass Object ( [pname] => 2-(4-Chlorophenyl)-2-(2-ethyl-1,3-dioxolan-2-yl)acetonitrile [catalogue_number] => PA 43 01510 [category_ids] => ,79,71,85,83,78,70,82, [chemical_name] => [weight] => 251.71 [form] => C13H14ClNO2 [cas] => 55474-41-4 [pslug] => 55474-41-4-2-4-chlorophenyl-2-2-ethyl-1-3-dioxolan-2-yl-acetonitrile-pa4301510 [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] => 48266 [offers_product_code] => PA 43 01510 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 43 01510
Molecular Formula : C13H14ClNO2
Molecular Weight : 251.71
stdClass Object ( [pname] => Pyrimethamine - Impurity C [catalogue_number] => PA 43 0010030 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 151.59 [form] => C8H6ClN [cas] => 140-53-4 [pslug] => 140-53-4-pyrimethamine-impurity-c-pa430010030 [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] => 48258 [offers_product_code] => PA 43 0010030 [offers_master_id] => 8 [offer_percentage] => 20 % OFF [offers_product_main_cat] => Pharmaceutical Reference Standards )
Catalogue No.:PA 43 0010030
Molecular Formula : C8H6ClN
Molecular Weight : 151.59
stdClass Object ( [pname] => Pyrimethamine E-isomer [catalogue_number] => PA 43 01520 [category_ids] => ,79,71,85,83,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C11H10ClNO [cas] => 118364-47-9 [pslug] => 118364-47-9-pyrimethamine-e-isomer-pa4301520 [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 43 01520
Molecular Formula : C11H10ClNO
Molecular Weight : 207.66
stdClass Object ( [pname] => Pyrimethamine Z-isomer [catalogue_number] => PA 43 01530 [category_ids] => ,79,71,85,83,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C11H10ClNO [cas] => 118364-40-2 [pslug] => 118364-40-2-pyrimethamine-z-isomer-pa4301530 [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 43 01530
stdClass Object ( [pname] => Pyrimethamine E/Z-Mixture [catalogue_number] => PA 43 01540 [category_ids] => ,79,71,85,83,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C11H10ClNO [cas] => 855377-91-2 [pslug] => 855377-91-2-pyrimethamine-e-z-mixture-pa4301540 [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 43 01540
stdClass Object ( [pname] => Pyrimethamine - Impurity D [catalogue_number] => PA 43 01560 [category_ids] => ,70,78,80,82, [chemical_name] => [weight] => 251.71 [form] => C13H14ClNO2 [cas] => NA [pslug] => pyrimethamine-impurity-d-pa4301560 [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 43 01560
stdClass Object ( [pname] => Ethyl 2-(4-chlorophenyl)-3-oxopentanoate [catalogue_number] => PA 43 01570 [category_ids] => ,92,80,78,70,82, [chemical_name] => [weight] => 254.71 [form] => C13H15ClO3 [cas] => 100713-76-6 [pslug] => 100713-76-6-ethyl-2-4-chlorophenyl-3-oxopentanoate-pa4301570 [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 43 01570
Molecular Formula : C13H15ClO3
Molecular Weight : 254.71
stdClass Object ( [pname] => (Z)-2-(4-Chlorophenyl)-3-hydroxypent-2-enenitrile [catalogue_number] => PA 43 01580 [category_ids] => ,92,80,78,70,82, [chemical_name] => [weight] => 207.66 [form] => C11H10ClNO [cas] => 945042-30-8 [pslug] => 945042-30-8-z-2-4-chlorophenyl-3-hydroxypent-2-enenitrile-pa4301580 [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 43 01580
stdClass Object ( [pname] => 2-Amino-5-(4-chlorophenyl)-6-ethylpyrimidin-4(1H)-one [catalogue_number] => PA 43 0011000 [category_ids] => 82,78,76,75,70 [chemical_name] => [weight] => 249.7 [form] => C12H12ClN3O [cas] => 91396-20-2 [pslug] => 91396-20-2-2-amino-5-4-chlorophenyl-6-ethylpyrimidin-4-1h-one-pa430011000 [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 43 0011000
Molecular Formula : C12H12ClN3O
Molecular Weight : 249.7
stdClass Object ( [pname] => 4-Amino-5-(4-chlorophenyl)-6-ethyl-1,2-dihydropyrimidin-2-one [catalogue_number] => PA 43 0011001 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 249.7 [form] => C12H12ClN3O [cas] => 93456-61-2 [pslug] => 93456-61-2-4-amino-5-4-chlorophenyl-6-ethyl-1-2-dihydropyrimidin-2-one-pa430011001 [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 43 0011001
stdClass Object ( [pname] => 2-(4-Chlorophenyl)-3-oxobutanenitrile [catalogue_number] => PA 43 0011002 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 193.63 [form] => C10H8ClNO [cas] => 5219-07-8 [pslug] => 5219-07-8- 2-4-chlorophenyl-3-oxobutanenitrile-pa430011002 [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 43 0011002
Molecular Formula : C10H8ClNO
Molecular Weight : 193.63
stdClass Object ( [pname] => 5-(4-Chlorophenyl)-6-ethylpyrimidine-2,4(1H,3H)-dione [catalogue_number] => PA 43 0011003 [category_ids] => ,75,76,78,70,82, [chemical_name] => [weight] => 250.68 [form] => C12H11ClN2O2 [cas] => NA [pslug] => 5-4-chlorophenyl-6-ethylpyrimidine-2-4-1h-3h-dione-pa430011003 [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 43 0011003
Molecular Formula : C12H11ClN2O2
Molecular Weight : 250.68
stdClass Object ( [pname] => Pyrimethamine - Impurity A [catalogue_number] => PA 43 0010010 [category_ids] => ,78,70,82,75, [chemical_name] => [weight] => 207.66 [form] => C11H10ClNO [cas] => NA [pslug] => pyrimethamine-impurity-a-pa430010010 [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 43 0010010
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