Astemizole is rapidly absorbed from the gastrointestinal tract and competitively binds to histamine H1 receptor sites in the gastrointestinal tract, uterus, blood vessels, and bronchial muscle. It is a histamine H1-receptor antagonist. It has anticholinergic and antipruritic effects.. Reference standards of Astemizole API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below
stdClass Object ( [pname] => Astemizole-d3 [catalogue_number] => PA STI 009120 [category_ids] => ,79,80,71,78,70,82,98, [chemical_name] => [weight] => 461.59 [form] => C28H28D3FN4O [cas] => 1189961-39-4 [pslug] => 1189961-39-4-astemizole-d3-pasti009120 [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 009120
CAS :
Molecular Formula : C28H28D3FN4O
Molecular Weight : 461.59
stdClass Object ( [pname] => O-Desmethyl Astemizole-d5 [catalogue_number] => PA STI 089308 [category_ids] => ,79,80,71,78,70,82,98, [chemical_name] => [weight] => 449.58 [form] => C27H24D5FN4O [cas] => NA [pslug] => o-desmethyl-astemizole-d5-pasti089308 [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 089308
Molecular Formula : C27H24D5FN4O
Molecular Weight : 449.58
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