Levothyroxine N-Acetyl Impurity CAS 26041-51-0
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 26041-51-0 |
| Molecular Formula | C17H13I4NO5 |
| Molecular Weight | 818.91 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Levothyroxine N-Acetyl Impurity (CAS 26041-51-0), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C17H13I4NO5. Molecular weight: 818.91 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C17H13I4NO5 |
| Molecular Weight | 818.91 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
Related Levothyroxine Standards
- Levothyroxine Impurity 4 (CAS 910907-23-2)
- Levothyroxine Ethyl Ester (CAS 76353-71-4)
- Levothyroxine Impurity 27 (CAS 671235-41-9)
- Levothyroxine Impurity 30 (CAS 107849-54-7)
- Levothyroxine impurity 47 (CAS CATO-C4X-167847)
- Levothyroxine Methyl Ester (CAS 32180-11-3)
- Levothyroxine Impurity N90 (CAS 30804-52-5)
- Levothyroxine Impurity 24 (CAS CATO-C4X-167824)
Recommended Standards
- (2R,3S,5R)-5-(6-Benzamido-9H-purin-9-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl methyl diisopropylphosphoramidite (CAS 84416-82-0)
- Etiroxate (CAS 17365-01-4)
- 3,3'-(1,4-Phenylene)bis(1,5-bis(3,4-dimethoxyphenyl)pentane-1,5-dione) (CAS 15775-88-9)
- Tucatinib Impurity 57（E-Isomer） (CAS CATO-C4X-260557)
- Folic Acid Impurity 25 (CAS 694514-39-1)
- 2-Fluoro-4-nitro-1-(2,2,2-trifluoroethoxy)benzene (CAS 956015-52-4)
- 6-oxabicyclo[3.2.1]octan-5-ylmethanethiol (CAS 2294589-28-7)
- 2-(4-Chlorobenzyl)-2H-benzo[d][1,2,3]triazole (CAS 3933-77-5)
- L-2,3-Diaminopropionic acid (CAS 4033-39-0)
- Semaglutide Impurity 4 (CAS CATO-C4X-22264)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com