Levothyroxine Ethyl Ester

Name: Levothyroxine Ethyl Ester
Brand: Vaqora Chemicals
SKU: VQ-034857

About Levothyroxine Ethyl Ester

Vaqora Chemicals supplies Levothyroxine Ethyl Ester, an impurity of Levothyroxine registered under CAS number 76353-71-4. With the molecular formula C17H15I4NO4, it has a molar mass of 804.92 g/mol. The IUPAC name is ethyl (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate. It is also known as Thyroxine Ethyl Ester or L-Thyroxine Ethyl Ester.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a characterised impurity of Levothyroxine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Levothyroxine Ethyl Ester in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Levothyroxine

View every impurity, metabolite and intermediate we list for Levothyroxine.

Levothyroxine impurities

Specifications & identifiers

Chemical identifiers
Product name	Levothyroxine Ethyl Ester
Catalogue No.	VQ-034857
CAS Number	76353-71-4
IUPAC name	ethyl (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate
Molecular formula	C₁₇H₁₅I₄NO₄
Molecular weight	804.92 g/mol
Exact mass	804.718
Grade	Reference Standard
HSN code	38229090
InChIKey	LSSGNEFHGVQOPA-AWEZNQCLSA-N
SMILES	CCOC(=O)[C@H](CC1=CC(=C(C(=C1)I)OC2=CC(=C(C(=C2)I)O)I)I)N
PubChem CID	54050781

Physical properties
Physical form	Solid
LogP (XLogP3)	5.3
H-bond donors / acceptors	2 / 5
TPSA	81.8 Å²
Synonyms	Thyroxine Ethyl Ester, L-Thyroxine Ethyl Ester, Ethyl 2-amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo phenyl) propanoate, L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, ethyl ester, O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine Ethyl Ester, Ethyl O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosinate

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Levothyroxine Ethyl Ester?

The CAS Registry Number of Levothyroxine Ethyl Ester is 76353-71-4. It is also known as Thyroxine Ethyl Ester, L-Thyroxine Ethyl Ester, Ethyl 2-amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo phenyl) propanoate.

What is the molecular formula and molecular weight of Levothyroxine Ethyl Ester?

Levothyroxine Ethyl Ester has the molecular formula C17H15I4NO4 and a molecular weight of 804.92 g/mol. Its IUPAC name is ethyl (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate.

What is Levothyroxine Ethyl Ester used for?

Levothyroxine Ethyl Ester is supplied as a characterised reference material related to Levothyroxine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Levothyroxine Ethyl Ester can I order?

We supply Levothyroxine Ethyl Ester in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Levothyroxine Ethyl Ester?

Yes. Every lot of Levothyroxine Ethyl Ester is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Levothyroxine Ethyl Ester be shipped internationally?

Yes. We export Levothyroxine Ethyl Ester worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.