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 C [catalogue_number] => PA 12 15030 [category_ids] => 82,80,78,75,74,70 [chemical_name] => [weight] => 621.93 [form] => C14H9I3O4 [cas] => 51-24-1 [pslug] => 51-24-1-levothyroxine-impurity-c-pa1215030 [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 15030
CAS :
Molecular Formula : C14H9I3O4
Molecular Weight : 621.93
stdClass Object ( [pname] => Levothyroxine - Impurity D [catalogue_number] => PA 12 15040 [category_ids] => 82,80,78,75,74,70 [chemical_name] => [weight] => 747.83 [form] => C14H8I4O4 [cas] => 67-30-1 [pslug] => 67-30-1-levothyroxine-impurity-d-pa1215040 [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 15040
Molecular Formula : C14H8I4O4
Molecular Weight : 747.83
stdClass Object ( [pname] => Levothyroxine - Impurity I [catalogue_number] => PA 12 15090 [category_ids] => 82,80,78,75,74,70 [chemical_name] => [weight] => 717.80 [form] => C13H6I4O3 [cas] => 2016-06-0 [pslug] => 2016-06-0-levothyroxine-impurity-i-pa1215090 [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 15090
Molecular Formula : C13H6I4O3
Molecular Weight : 717.80
stdClass Object ( [pname] => 3,5,3',5'-Tetraiodo Thyromandelic Acid [catalogue_number] => PA 12 15700 [category_ids] => 82,80,78,75,74,70 [chemical_name] => [weight] => 763.83 [form] => C14H8I4O5 [cas] => 93647-48-4 [pslug] => 93647-48-4-3-5-3-5-tetraiodo-thyromandelic-acid-pa1215700 [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 15700
Molecular Formula : C14H8I4O5
Molecular Weight : 763.83
stdClass Object ( [pname] => 3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]lactic Acid [catalogue_number] => PA 12 15720 [category_ids] => ,80,74,78,70,82, [chemical_name] => [weight] => 777.85 [form] => C15H10I4O5 [cas] => 7069-47-8 [pslug] => 7069-47-8-3-4-4-hydroxy-3-5-diiodophenoxy-3-5-diiodophenyl-lactic-acid-pa1215720 [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 15720
Molecular Formula : C15H10I4O5
Molecular Weight : 777.85
stdClass Object ( [pname] => 2-Amino-3-(4-(4-hydroxyphenoxy)-3,5-diiodophenyl)propanoic Acid [catalogue_number] => PA 12 15730 [category_ids] => ,80,74,78,70,82, [chemical_name] => [weight] => 525.08 [form] => C15H13I2NO4 [cas] => 5563-89-3 [pslug] => 5563-89-3-2-amino-3-4-4-hydroxyphenoxy-3-5-diiodophenyl-propanoic-acid-pa1215730 [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 15730
Molecular Formula : C15H13I2NO4
Molecular Weight : 525.08
stdClass Object ( [pname] => 2-(4-(4-Hydroxyphenoxy)-3,5-diiodophenyl)acetic Acid [catalogue_number] => PA 12 15740 [category_ids] => ,80,74,78,70,82, [chemical_name] => [weight] => 496.04 [form] => C14H10I2O4 [cas] => 1155-40-4 [pslug] => 1155-40-4-2-4-4-hydroxyphenoxy-3-5-diiodophenyl-acetic-acid-pa1215740 [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 15740
Molecular Formula : C14H10I2O4
Molecular Weight : 496.04
stdClass Object ( [pname] => 3,3’,5-Triiodo Thyroacetic Acid n-Butyl Ester [catalogue_number] => PA 12 15880 [category_ids] => ,80,74,75,78,70,82, [chemical_name] => [weight] => 678.04 [form] => C18H17I3O4 [cas] => 1797030-15-9 [pslug] => 1797030-15-9-3-3-5-triiodo-thyroacetic-acid-n-butyl-ester-pa1215880 [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 15880
Molecular Formula : C18H17I3O4
Molecular Weight : 678.04
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