Letermovir Impurity 58 CAS CATO-C4X-291558
| CAS No. | CATO-C4X-291558 |
| Molecular Formula | C22H24FN3O4 |
| Molecular Weight | 413.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Letermovir Impurity 58 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Letermovir Impurity 58 (CAS CATO-C4X-291558) is a certified pharmaceutical impurity reference standard with the molecular formula C22H24FN3O4 and a molecular weight of 413.44 g/mol.
Based on its molecular formula C22H24FN3O4, Letermovir Impurity 58 contains a flavonoid core, 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 413.44 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.
CATO manufactures Letermovir Impurity 58 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 | C22H24FN3O4 |
| Molecular Weight | 413.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Letermovir Standards
- Letermovir impurity 137 (CAS CATO-C4X-2915137)
- Letermovir Impurity 132 (CAS CATO-C4X-2915132)
- Letermovir Impurity 71 (CAS CATO-C4X-291571)
- Letermovir Impurity 75 (CAS CATO-C4X-291575)
- Letermovir Impurity 83 (CAS CATO-C4X-291583)
- Letermovir Impurity 85 (CAS CATO-C4X-291585)
- Letermovir Impurity 90 (CAS CATO-C4X-291590)
- Letermovir Impurity 92 (CAS CATO-C4X-291592)
Recommended Standards
- N,N-Dimethyl-4-(3-(3-(pyridin-4-yl)-1,2,4-oxadiazol-5-yl)azetidine-1-carbonyl)benzenesulfonamide (CAS 1251558-67-4)
- Piperidine Impurity 1 (CAS 1463453-46-4)
- 3-((Benzyloxy)methyl)-1-((3-(trifluoromethyl)phenyl)sulfonyl)piperidine (CAS 1251564-53-0)
- 5-(4-Fluorobenzyl)-8-methoxy-3-(4-methoxyphenyl)-5H-pyrazolo[4,3-c]quinoline (CAS 866347-48-0)
- Ibrutinib Impurity 166 (CAS CATO-C4X-1064166)
- Vazegepant Impurity 42 (CAS CATO-C4X-320042)
- Etrasimod impurity 2 (CAS 1206123-51-4)
- 4-(2-imino-3-methyl-5-oxoimidazolidin-1-yl)butanoic acid (CAS 213181-98-7)
- pent-4-yne-1-sulfonamide (CAS 1565108-36-2)
- 5-Isoxazolecarboxylic Acid Methyl Ester (CAS 15055-81-9)
- trans-4-(N-Maleimidomethyl)cyclohexane-1-carboxylic Acid (CAS 69907-67-1)
- Cyclopamine (CAS 4449-51-8)
- Clofazimine Impurity 22 (CAS CATO-C4X-207122)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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