Lenvatinib Impurity 71 CAS 13066-95-0
| CAS No. | 13066-95-0 |
| Molecular Formula | C6H7NO2 |
| Molecular Weight | 125.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Lenvatinib Impurity 71 (CAS 13066-95-0), a pharmacopoeial impurity reference standard (molecular formula C6H7NO2, MW 125.13 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C6H7NO2, Lenvatinib Impurity 71 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 125.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Lenvatinib Impurity 71 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H7NO2 |
| Molecular Weight | 125.13 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Related Lenvatinib Standards
- Lenvatinib Impurity 101 (CAS 1453-50-5)
- Lenvatinib Impurity 77 (CAS 1864-94-4)
- Lenvatinib Impurity 117 (CAS 1565657-07-9)
- Lenvatinib Impurity 80 (CAS 6558-73-2)
- Lenvatinib Impurity 151 (CAS 289625-93-0)
- Lenvatinib Impurity N2 (CAS 13932-55-3)
- Lenvatinib Impurity 16 (CAS 69332-65-6)
- Lenvatinib Impurity 69 (CAS 615-66-7)
Recommended Standards
- Vildagliptin Impurity 84 (CAS CATO-C4X-110084)
- Bedaquiline impurity 43 (CAS 90724-56-4)
- 2,4,6-Triaminopyrimidine (CAS 1004-38-2)
- Metformin Impurity 18 (CAS 58228-69-6)
- Flecainide EP Impurity C (CAS 152171-74-9)
- Semaglutide Impurity 125 xTFA Salt (CAS CATO-C4X-2226125)
- Adenosine Cyclophosphate Impurity 3 (CAS 63963-62-2)
- (1,1-Dioxidotetrahydro-2H-thiopyran-2-yl)methanol (CAS 1421604-18-3)
- 2-Fluoro-3-bromo-5-carboxyphenylboronic acid (CAS 1452575-84-6)
- Domperidone Impurity 19 (CAS 53786-42-8)
- 2-(2-Hydroxy-1h-indol-3-yl)diazene-1-carbothioamide (CAS 487-16-1)
- 5-Methoxypyrimidine-2-carbohydrazide (CAS 87362-26-3)
- trans-3-amino-1-methylcyclobutan-1-ol (CAS 1363381-26-3)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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 18665070610 / Nicole.chen@cato-chem.com