Allopurinol is a purine analog and it is a structural isomer of hypoxanthine. It is an inhibitor of the enzyme xanthine oxidase. Allopurinol is used to treat excess uric acid in the blood and gout. It is sold under the brand name Zyloprim. Reference standards of Allopurinol API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Allopurinol Related Compound B (5-(formylamino)-1H-pyrazole-4-carboxamide) (1013013) [catalogue_number] => PA USP1013013 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 22407-20-1 [pslug] => 22407-20-1-allopurinol-related-compound-b-5-formylamino-1h-pyrazole-4-carboxamide-1013013-pausp1013013 [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 USP1013013
CAS :
Molecular Formula : NA
Molecular Weight : NA
stdClass Object ( [pname] => Allopurinol Related Compound A (3-Amino-4-carboxamidopyrazole Hemisulfate) (1013024) [catalogue_number] => PA USP1013024 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 27511-79-1 [pslug] => 27511-79-1-allopurinol-related-compound-a-3-amino-4-carboxamidopyrazole-hemisulfate-1013024-pausp1013024 [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 USP1013024
stdClass Object ( [pname] => Allopurinol Related Compound E (ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate) (1013068) [catalogue_number] => PA USP1013068 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 31055-19-3 [pslug] => 31055-19-3-allopurinol-related-compound-e-ethyl-5-formylamino-1h-pyrazole-4-carboxylate-1013068-pausp1013068 [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 USP1013068
stdClass Object ( [pname] => Allopurinol (1013002) [catalogue_number] => PA USP1013002 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 315-30-0 [pslug] => 315-30-0-allopurinol-1013002-pausp1013002 [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 USP1013002
stdClass Object ( [pname] => Allopurinol Related Compound F (ethyl-(E/Z)-3-(2-carbethoxy-2-cyanoethenyl)amino-1H-pyrazole-4-carb (1013079) [catalogue_number] => PA USP1013079 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 321571-07-7 [pslug] => 321571-07-7-allopurinol-related-compound-f-ethyl-e-z-3-2-carbethoxy-2-cyanoethenyl-amino-1h-pyrazole-4-carb-1013079-pausp1013079 [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 USP1013079
stdClass Object ( [pname] => Allopurinol Related Compound D (ethyl 5-amino-1H-pyrazole-4-carboxylate) (1013046) [catalogue_number] => PA USP1013046 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => 6994-25-8 [pslug] => 6994-25-8-allopurinol-related-compound-d-ethyl-5-amino-1h-pyrazole-4-carboxylate-1013046-pausp1013046 [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 USP1013046
stdClass Object ( [pname] => Allopurinol Related Compound C (5-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide) (1013035) [catalogue_number] => PA USP1013035 [category_ids] => ,149, [chemical_name] => [weight] => NA [form] => NA [cas] => NA [pslug] => allopurinol-related-compound-c-5-4h-1-2-4-triazol-4-yl-1h-pyrazole-4-carboxamide-1013035-pausp1013035 [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 USP1013035
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