Fosaprepitant Impurity 2 CAS CATO-C4X-11682
| CAS No. | CATO-C4X-11682 |
| Molecular Formula | C23H22F7N4O6P |
| Molecular Weight | 614.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C23H22F7N4O6P, Fosaprepitant Impurity 2 contains a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 614.41 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.
CATO supplies Fosaprepitant Impurity 2 (CAS CATO-C4X-11682), a pharmacopoeial impurity reference standard (molecular formula C23H22F7N4O6P, MW 614.41 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Fosaprepitant 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 | C23H22F7N4O6P |
| Molecular Weight | 614.41 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Fosaprepitant Standards
- Fosaprepitant Impurity 5 (CAS CATO-C4X-11685)
- Fosaprepitant Impurity 46 (CAS CATO-C4X-116846)
- Fosaprepitant Impurity 47 (CAS CATO-C4X-116847)
- Fosaprepitant Impurity 43 (CAS CATO-C4X-116843)
- Fosaprepitant Impurity 35 (CAS CATO-C4X-116835)
- Fosaprepitant impurity 10 (CAS CATO-C4X-116810)
- Fosaprepitant Impurity 52 (CAS CATO-C4X-116852)
- Fosaprepitant Impurity 7 (CAS CATO-C4X-11687)
Recommended Standards
- Aprepitant impurity 47 (CAS 172673-20-0)
- 2-Methoxy-1,4-dioxane (CAS 20732-36-9)
- 1,3-Oxazinane-2,6-dione (CAS 5638-70-0)
- 4-tert-Butyldimethylsilyl-5-chloro-4a-hydroxy-6-(hydroxyimino)methyl Simvastatin (CAS 123852-22-2)
- Dl-Lysine Acetylsalicylate EP Impurity H (CAS CATO-C4X-22113)
- Ibrutinib Impurity 39 (CAS CATO-C4X-106439)
- Tebipenem Impurity 13 (CAS CATO-C4X-134713)
- 2-Chloro-2-phenyl-1-(pyrrolidin-1-yl)ethan-1-one (CAS 190964-87-5)
- 6-Methyltetradecanoic Acid Methyl Ester (CAS 1295648-07-5)
- (3,5-Dibromo-4-hydroxyphenyl)(phenyl)methanone (CAS 26733-16-4)
- ETHYL 9-BROMO-4,5-DIHYDROBENZO[2,3]OXEPINO[4,5-D]THIAZOLE-2-CARBOXYLATE (CAS 1189817-31-9)
- 3-Fluoro-2-iodo-4-methylpyridine (CAS 153035-05-3)
- 7-(Trifluoromethyl)-1H-indazol-3-amine (CAS 60330-35-0)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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