A synthetic form of thyroid hormone, Thyroxine. Levothyroxine is used in the treatment of thyroid hormone deficiency and certain types of thyroid tumors. It is a levorotatory enantiomer of Thyroxine. Reference standards of Levothyroxine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
stdClass Object ( [pname] => Levothyroxine - Impurity E [catalogue_number] => PA 12 15050 [category_ids] => ,97,105,70, [chemical_name] => [weight] => 525.08 [form] => C15H13I2NO4 [cas] => 1041-01-6 [pslug] => 1041-01-6-levothyroxine-impurity-e-pa1215050 [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 12 15050
CAS :
Molecular Formula : C15H13I2NO4
Molecular Weight : 525.08
stdClass Object ( [pname] => Levothyroxine - Impurity J [catalogue_number] => PA 12 15100 [category_ids] => ,97,105, [chemical_name] => [weight] => 525.08 [form] => C15H13I2NO4 [cas] => 4604-41-5 [pslug] => 4604-41-5-levothyroxine-impurity-j-pa1215100 [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 12 15100
stdClass Object ( [pname] => Levothyroxine - Impurity K [catalogue_number] => PA 12 15110 [category_ids] => ,97,105, [chemical_name] => [weight] => 650.97 [form] => C15H12I3NO4 [cas] => 5817-39-0 [pslug] => 5817-39-0-levothyroxine-impurity-k-pa1215110 [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 12 15110
Molecular Formula : C15H12I3NO4
Molecular Weight : 650.97
stdClass Object ( [pname] => Levothyroxine Sodium [catalogue_number] => PA 12 15510 [category_ids] => ,70,78,80,82,97, [chemical_name] => [weight] => 798.85 [form] => C15H10I4NNaO4 [cas] => 55-03-8 [pslug] => 55-03-8-levothyroxine-sodiumÂ-pa1215510 [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 12 15510
Molecular Formula : C15H10I4NNaO4
Molecular Weight : 798.85
stdClass Object ( [pname] => Levothyroxine Ethyl Ester [catalogue_number] => PA 12 15520 [category_ids] => ,97,80,78,70,82, [chemical_name] => [weight] => 804.92 [form] => C17H15I4NO4 [cas] => 76353-71-4 [pslug] => 76353-71-4-levothyroxine-ethyl-ester-pa1215520 [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 12 15520
Molecular Formula : C17H15I4NO4
Molecular Weight : 804.92
stdClass Object ( [pname] => Levothyroxine Methyl Ester [catalogue_number] => PA 12 15530 [category_ids] => ,97,80,81,78,70,82, [chemical_name] => [weight] => 790.9 [form] => C16H13I4NO4 [cas] => 32180-11-3 [pslug] => 32180-11-3-levothyroxine-methyl-ester-pa1215530 [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 12 15530
Molecular Formula : C16H13I4NO4
Molecular Weight : 790.9
stdClass Object ( [pname] => Levothyroxine D-Isomer [catalogue_number] => PA 12 15710 [category_ids] => ,97,80,78,70,82, [chemical_name] => [weight] => 776.87 [form] => C15H11I4NO4 [cas] => 51-49-0 [pslug] => 51-49-0-levothyroxine-d-isomer-pa1215710 [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 12 15710
Molecular Formula : C15H11I4NO4
Molecular Weight : 776.87
stdClass Object ( [pname] => 3,3’,5-Triiodo-L-thyronine 4’-O-Sulfate [catalogue_number] => PA 12 15900 [category_ids] => ,97,80,76,75,78,70,82,88, [chemical_name] => [weight] => 731.04 [form] => C15H12I3NO7S [cas] => 31135-55-4 [pslug] => 31135-55-4-3-3-5-triiodo-l-thyronine-4-o-sulfate-pa1215900 [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 12 15900
Molecular Formula : C15H12I3NO7S
Molecular Weight : 731.04
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