Paxlovid Impurity 2 CAS 2755812-41-8
| CAS No. | 2755812-41-8 |
| Molecular Formula | C23H32F3N5O4 |
| Molecular Weight | 499.53 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Paxlovid Impurity 2.
CATO supplies Paxlovid Impurity 2 (CAS 2755812-41-8), a pharmacopoeial impurity reference standard (molecular formula C23H32F3N5O4, MW 499.53 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Paxlovid Impurity 2 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 499.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), Paxlovid Impurity 2 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 | C23H32F3N5O4 |
| Molecular Weight | 499.53 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 5 |
Related Paxlovid Standards
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- 2-(2-Chloroacetyl)-1,2,6,7-tetrahydro-[1,2,4]triazolo[4,3-a]pyrimidin-3(5H)-one (CAS 108735-50-8)
- 3,3-dichloroprop-2-enal (CAS 2648-51-3)
- 1-(4-Methyl-benzyl)-piperazinehydrochloride (CAS 435345-17-8)
- 2-Amino-5-fluoro-4-methylbenzamide (CAS 1334149-42-6)
- Liraglutide(8-31)TFA Salt (CAS CATO-C4X-19922)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com