4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodo-benzenemethanol
- CAS
- 2055-94-9
- Formula
- C13H8I4O3
- MW
- 719.82 g/mol
ZX-025392
API Reference Standards
Levothyroxine Sodium
Reference StandardAvailable on request
Levothyroxine Sodium (CAS 55-03-8) supplier Zemixal: C15H10I4NNaO4, COA and SDS with every lot, worldwide shipping. Ships from India to 120+ countries.
CAS number55-03-8
FormulaC15H10I4NNaO4
Molar mass798.85 g/mol
Physical formSolid
HS code38229090
InChIKeyYDTFRJLNMPSCFM-YDALLXLXSA-M
IUPAC namesodium (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate
About Levothyroxine Sodium
Zemixal lists Levothyroxine Sodium for laboratories that identify, quantify or control Levothyroxine and its related substances. Key data (Reference Standard): CAS 55-03-8, formula C15H10I4NNaO4 and molar mass 798.85 g/mol. It is handled as a solid.
Use cases we see most often
- Identification & assay
- Method development & validation
- QC reference material
Handling and storage
Classified under GHS with signal word Danger and hazard statements H361 and H372. Read the SDS before first use.
Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Reference standards for Levothyroxine
See every impurity, metabolite and related compound we list for this API.
Levothyroxine standardsTypical uses
- Identification & assay
- Method development & validation
- QC reference material
Applications
Specifications and identifiers
| Product name | Levothyroxine Sodium |
|---|---|
| Catalogue number | ZX-025391 |
| CAS number | 55-03-8 |
| IUPAC name | sodium (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate |
| Molecular formula | C15H10I4NNaO4 |
| Molar mass | 798.85 g/mol |
| Exact mass | 798.6686 |
| Grade | Reference Standard |
| Physical form | Solid |
| H-bond donors / acceptors | 2 / 5 |
| Topological polar surface area | 95.6 Ų |
| HS code | 38229090 |
| InChIKey | YDTFRJLNMPSCFM-YDALLXLXSA-M |
| SMILES | C1=C(C=C(C(=C1I)OC2=CC(=C(C(=C2)I)O)I)I)C[C@@H](C(=O)[O-])N.[Na+] |
| PubChem CID | 23666112 |
| Synonyms | Thyroxine Sodium, L-Thyroxine sodium, Levoxyl, Thyroxin sodium, Sodium levothyroxine, Sodium thyroxinate, Levo-T, eltroxin, Sodium L-thyroxine, Thyronamin, Levaxin, Levothyroxine sodium anhydrous |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H361Suspected of damaging fertility or the unborn child
- H372Causes damage to organs through prolonged or repeated exposure
Precautionary statements P203, P260, P264, P270, P280, P318, P319, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Levothyroxine Sodium
Which CAS number identifies Levothyroxine Sodium?
Levothyroxine Sodium is registered under CAS 55-03-8. You may also see it listed as Thyroxine Sodium, L-Thyroxine sodium, Levoxyl. Our catalogue number for this item is ZX-025391.
What are the formula and molar mass of Levothyroxine Sodium?
For Levothyroxine Sodium, its formula is C15H10I4NNaO4 and its molar mass is 798.85 g/mol. The systematic (IUPAC) name is sodium (2S)-2-amino-3-[4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]propanoate. InChIKey YDTFRJLNMPSCFM-YDALLXLXSA-M lets you match it in any structure database.
How is Levothyroxine Sodium used in pharmaceutical QC?
Levothyroxine Sodium is a characterised reference material linked to Levothyroxine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Levothyroxine Sodium?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Levothyroxine Sodium?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Levothyroxine Sodium to my country?
Yes. Because Levothyroxine Sodium is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
More Levothyroxine standards
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