Letermovir impurity 112 CAS CATO-C4X-2915112
| CAS No. | CATO-C4X-2915112 |
| Molecular Formula | C32H32F2N4O5 |
| Molecular Weight | 590.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Letermovir impurity 112 (CAS CATO-C4X-2915112), a pharmacopoeial impurity reference standard (molecular formula C32H32F2N4O5, MW 590.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Letermovir impurity 112 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 590.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Letermovir impurity 112 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 | C32H32F2N4O5 |
| Molecular Weight | 590.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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 Letermovir Standards
- Letermovir impurity 109 (CAS CATO-C4X-2915109)
- Letermovir impurity 56 (CAS CATO-C4X-291556)
- R-Letermovir Impurity 61 (CAS CATO-C4X-291561)
- 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
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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
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com