Maribavir Impurity 16 CAS 176161-21-0
| CAS No. | 176161-21-0 |
| Molecular Formula | C18H17BrCl2N2O7 |
| Molecular Weight | 524.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Maribavir Impurity 16 (CAS 176161-21-0, C18H17BrCl2N2O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H17BrCl2N2O7, Maribavir Impurity 16 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 524.15 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).
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 Maribavir Impurity 16 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 | C18H17BrCl2N2O7 |
| Molecular Weight | 524.15 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 2 |
Related Maribavir Standards
- Maribavir Impurity N26 (CAS 176161-18-5)
- Maribavir Impurity 10 (CAS CATO-C4X-300710)
- Maribavir Impurity 19 (CAS CATO-C4X-300719)
- Maribavir Impurity 34 (CAS CATO-C4X-300734)
- Maribavir Impurity 35 (CAS CATO-C4X-300735)
- Maribavir Impurity 11 (CAS CATO-C4X-300711)
- Maribavir Impurity 13 (CAS CATO-C4X-300713)
- Maribavir Impurity 14 (CAS 142356-76-1)
Recommended Standards
- Xanthosine-5'-Triphosphate (CAS 6253-56-1)
- Brexpiprazole Impurity 61 (CAS CATO-C4X-113161)
- (2E)-1-{3-[(2,4-dichlorophenyl)methoxy]phenyl}-3-[(4-iodophenyl)amino]prop-2-en-1-one (CAS 478040-36-7)
- Brexpiprazole Impurity 59 (CAS CATO-C4X-113159)
- Oseltamivir Impurity 186 (CAS CATO-C4X-1720186)
- Adenosine Impurity 20 (CAS 77530-02-0)
- Levocetirizine Impurity 77 (CAS CATO-C4X-108377)
- (1-Oxo-1,2-dihydroisoquinolin-6-yl)boronic acid (CAS 376584-82-6)
- 6-(Tert-butyl)-2-((pyridin-4-ylmethyl)thio)-4-(thiophen-2-yl)-5,6,7,8-tetrahydroquinoline-3-carbonitrile (CAS 354556-51-7)
- {[4-Fluoro-3-(trifluoromethyl)phenyl]methyl}boronic acid (CAS 1980905-33-6)
- 2-(6-Bromo-2-cyano-5-(difluoromethyl)pyridin-3-yl)acetic acid (CAS 1805388-36-6)
- Diethyl (1H,1H,2H,2H-perfluorooctyl)phosphonate (CAS 350608-55-8)
- cis-3-hydroxycyclohexanecarboxylic acid (CAS 22267-35-2)
- Antifreeze Polypeptide 6 (winter flounder) trifluoroacetate salt (CAS 122604-16-4)
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