Letermovir Impurity 99 CAS CATO-C4X-291599
| CAS No. | CATO-C4X-291599 |
| Molecular Formula | C30H30F4N4O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Letermovir Impurity 99 (CAS CATO-C4X-291599, C30H30F4N4O4HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C30H30F4N4O4HCl, Letermovir Impurity 99 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 623.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures Letermovir Impurity 99 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 | C30H30F4N4O4 HCl |
| Molecular Weight | 623.04 g/mol |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Letermovir Standards
- Letermovir Impurity 4 (CAS 1791412-07-1)
- Letermovir impurity 118 (CAS 2758792-75-3)
- Letermovir impurity 119 (CAS 2864441-61-0)
- Letermovir Isopropyl Ester (CAS 2872586-94-0（free base）)
- Letermovir Impurity 54 (CAS 2991059-70-0)
- Letermovir Impurity 27 (CAS 2991059-71-1)
- Letermovir Impurity 28 (CAS 2991299-71-7)
- Letermovir Impurity 32 (CAS 2994645-03-1)
Recommended Standards
- Olaparib Impurity 136 (CAS CATO-C4X-1135136)
- Bromhexine impurity 67 (CAS CATO-C4X-106067)
- Opicapone impurity 63 (CAS CATO-C4X-240463)
- 4-(4-(Benzyloxy)butoxy)butan-1-ol (CAS 1675230-48-4)
- 2-(4-Fluorophenyl)-3-oxopropanenitrile (CAS 398-42-5)
- 2,4-Dibromo-1-(2-bromoethoxy)benzene (CAS 76429-66-8)
- PMPA (CAS 616-52-4)
- 1-cyclopentanecarbonylazetidine-3-sulfonyl chloride (CAS 1461715-32-1)
- 2-(2-bromophenyl)ethane-1-sulfonyl chloride (CAS 1033629-59-2)
- Semaglutide impurity 01 (CAS 1998701-31-7)
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