(R)-Letermovir Ethyl Ester CAS CATO-C4X-291535
| CAS No. | CATO-C4X-291535 |
| Molecular Formula | C31H32F4N4O4 |
| Molecular Weight | 600.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (R)-Letermovir Ethyl Ester (CAS CATO-C4X-291535), a certified reference material (molecular formula C31H32F4N4O4, MW 600.60 g/mol) for analytical method development and quality control.
The molecular framework of (R)-Letermovir Ethyl Ester (C31H32F4N4O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures (R)-Letermovir Ethyl Ester 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 | C31H32F4N4O4 |
| Molecular Weight | 600.60 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related R Standards
- Letermovir Impurity 41 (CAS CATO-C4X-291541)
- Letermovir Impurity 32 (CAS 2994645-03-1)
- Letermovir Impurity 24 (CAS CATO-C4X-291524)
- Letermovir Impurity 23 (CAS CATO-C4X-291523)
- Letermovir impurity 109 (CAS CATO-C4X-2915109)
- Letermovir impurity 112 (CAS CATO-C4X-2915112)
- Letermovir impurity 56 (CAS CATO-C4X-291556)
- R-Letermovir Impurity 61 (CAS CATO-C4X-291561)
Recommended Standards
- 【停用，见C4X-29156】Letermovir impurity 117 (CAS 2758792-79-7)
- Osimertinib Impurity 97 (CAS CATO-C4X-204597)
- HT-2 Toxin 3-Glucuronide (CAS 100690-35-5)
- Osimertinib impurity 59 (CAS CATO-C4X-204559)
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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