Australia
Bangladesh
Belgium
Brazil
Canada
China
Egypt
France
Germany
India
Indonesia
Ireland
VAQORALevothyroxine WS
Synonyms: O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine · (-)-Thyroxine · Levothyroxine · 3,3′,5,5′-Tetraiodo-L-thyronine
CAS No.51-48-9
FormulaC15H11I4NO4
Mol. weight776.87
Catalogue No.VQ-007542
PurityReference Standard
HSN38229090
Levothyroxine WS (CAS 51-48-9) – Levothyroxine reference standard. C15H11I4NO4, MW 776.87. COA included. Worldwide shipping from Vaqora Chemicals.
Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
250 mg
500 mg
1 g
Bulk / custom pack · kg to MT
Enquire Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Levothyroxine WS
Listed under CAS 51-48-9, Levothyroxine WS is a high-purity reference standard of Levothyroxine available from Vaqora Chemicals. Its molecular formula is C15H11I4NO4 and its molecular weight is 776.87 g/mol. Systematically, it is named (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid. Common synonyms include (-)-Thyroxine and Levothyroxine.
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. It carries the GHS signal word “Danger” with 3 hazard statements. Review the Safety Data Sheet before use.
Laboratories use this Levothyroxine standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.
We offer Levothyroxine WS in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.
Typical applications
- Identification & assay
- Method development & validation
- QC reference material
Industries
Related to Levothyroxine
View every impurity, metabolite and intermediate we list for Levothyroxine.
Levothyroxine impuritiesSpecifications & identifiers
| Product name | Levothyroxine WS |
|---|---|
| Catalogue No. | VQ-007542 |
| CAS Number | 51-48-9 |
| IUPAC name | (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid |
| Molecular formula | C15H11I4NO4 |
| Molecular weight | 776.87 g/mol |
| Exact mass | 776.6867 |
| Grade | Reference Standard |
| HSN code | 38229090 |
| InChIKey | XUIIKFGFIJCVMT-LBPRGKRZSA-N |
| SMILES | C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)O)N |
| PubChem CID | 5819 |
| Physical form | Solid |
|---|---|
| LogP (XLogP3) | 2.4 |
| H-bond donors / acceptors | 3 / 5 |
| TPSA | 92.8 Ų |
| Synonyms | O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine, (-)-Thyroxine, Levothyroxine, 3,3′,5,5′-Tetraiodo-L-thyronine, 3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-L-alanine, 3,3',5,5'-Tetraiodo-L-thyronine, Henning, L-Thyroxin, Thyrax, Thyreoideum, Thyroxin, Thyroxina l |
Safety & hazard information (GHS)
Signal word: Danger
Hazard statements
H302Harmful if swallowedH361Suspected of damaging fertility or the unborn childH372Causes damage to organs through prolonged or repeated exposure
Precautionary statements: P203, P260, P264, P270, P280, P301 + P317, P318, P319, P330, P405, P501
Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.
Documents
Frequently asked questions
What is the CAS number of Levothyroxine WS?
The CAS Registry Number of Levothyroxine WS is 51-48-9. It is also known as O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosine, (-)-Thyroxine, Levothyroxine.
What is the molecular formula and molecular weight of Levothyroxine WS?
Levothyroxine WS has the molecular formula C15H11I4NO4 and a molecular weight of 776.87 g/mol. Its IUPAC name is (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoic acid.
What is Levothyroxine WS used for?
Levothyroxine WS 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 WS can I order?
We supply Levothyroxine WS in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Levothyroxine WS?
Yes. Every lot of Levothyroxine WS 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 WS be shipped internationally?
Yes. Levothyroxine WS is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.
Enquire about Levothyroxine WS
We reply within one business day with price, pack options, lead time and documentation.
Related products
