R-Letermovir Impurity 61 CAS CATO-C4X-291561
| CAS No. | CATO-C4X-291561 |
| Molecular Formula | C32H32F2N4O5 |
| Molecular Weight | 590.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C32H32F2N4O5, R-Letermovir Impurity 61 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 590.62 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).
As a process- or degradation-related impurity, R-Letermovir Impurity 61 (CAS CATO-C4X-291561, C32H32F2N4O5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures R-Letermovir Impurity 61 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C32H32F2N4O5 |
| Molecular Weight | 590.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related R Standards
- Letermovir impurity 109 (CAS CATO-C4X-2915109)
- Letermovir impurity 112 (CAS CATO-C4X-2915112)
- Letermovir impurity 56 (CAS CATO-C4X-291556)
- Letermovir Impurity 81 (CAS CATO-C4X-291581)
- Letermovir Impurity 23 (CAS CATO-C4X-291523)
- Letermovir impurity 55 (CAS CATO-C4X-291555)
- Letermovir impurity 128 (CAS CATO-C4X-2915128)
- Letermovir Impurity 27 (CAS 2991059-71-1)
Recommended Standards
- 1,1′-[9-(1-Methylethylidene)-9H-xanthene-4,5-diyl]bis[1,1-diphenylphosphine] (CAS 261733-14-6)
- Suc-Ala-Ala-Pro-Ile-pNA (L-1790.0250) (CAS 72682-77-0)
- Methylprednisolone impurity 84 (CAS CATO-C4X-191984)
- MeOSuc-Ala-Ala-Pro-Val-pNA (CAS 70967-90-7)
- Quetiapine EP Impurity N DiHCl (CAS 1800291-86-4（free base）)
- Ritonavir Impurity 52 (CAS CATO-C4X-175152)
- Naltrexone Hydrochloride EP Impurity C (CAS 131670-05-8)
- 2-Amino-3-(2-oxo-2,3-dihydro-1h-1,3-benzodiazol-5-yl)propanoic acid (CAS 748715-77-7)
- 5-Bromo-6-hydroxy-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 815618-77-0)
- 3-(3-(Azepan-1-yl)propoxy)-1-(3-(trifluoromethyl)phenyl)-1H-pyrazolo[3,4-b]pyridine hydrochloride (CAS 38357-93-6)
- Acridine (d9) (CAS 34749-75-2)
- Amopyroquine N-Oxide (CAS 172476-17-4)
- 2-Chloro-6-(difluoromethyl)-3-methylisonicotinic acid (CAS 1804491-52-8)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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