Fosaprepitant Impurity 21 CAS 265121-01-5
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 265121-01-5 |
| Molecular Formula | C37H34F7N4O6P |
| Molecular Weight | 794.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Fosaprepitant Impurity 21 (CAS 265121-01-5) pharmacopoeial impurity standards reference standard. Molecular formula: C37H34F7N4O6P. Molecular weight: 794.65 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C37H34F7N4O6P |
| Molecular Weight | 794.65 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) | 19.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
Related Fosaprepitant Standards
- Fosaprepitant Impurity 20 (CAS CATO-C4X-116820)
- Fosaprepitant impurity 58 (CAS CATO-C4X-116858)
- Fosaprepitant Impurity 51 (CAS CATO-C4X-116851)
- Fosaprepitant Impurity 12 (CAS 2035475-10-4)
- Fosaprepitant Impurity 22 (CAS CATO-C4X-116822)
- Fosaprepitant Impurity 42 (CAS CATO-C4X-116842)
- Fosaprepitant Impurity 44 (CAS CATO-C4X-116844)
- Fosaprepitant Impurity 45 (CAS CATO-C4X-116845)
Recommended Standards
- Dichloro [(R)-(+)-2,2-bis(diphenylphosphino)-1,1-binaphathyl] ruthenium(II) (CAS 132071-87-5)
- 2,3-Dibromo-1,4-dichlorobutane (CAS 4911-46-0)
- (11aS)-3,7-Bis[3,5-bis(trifluoromethyl)phenyl]-10,11,12,13-tetrahydro-10,10,13,13-tetramethyl-5-hydroxy-5-oxide-diindeno[7,1-de:1',7'-fg][1,3,2]dioxaphosphocin (CAS 2250167-83-8)
- Ivacaftor impurity 17 (CAS CATO-C4X-296417)
- Mitiglinide Impurity 7 (CAS 21307-97-1)
- 145918-59-8 7,8,9,9-Tetradehydroisolariciresinol (CAS 145918-59-8)
- 3-(5-Chloro-8-methoxy-4-oxoquinolin-1(4H)-yl)propanehydrazide (CAS 1315373-66-0)
- Pomalidomide Impurity 8 (CAS 603-11-2)
- 5-Bromo-2-(tetrahydro-2-furanylmethoxy)aniline (CAS 946664-90-0)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
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 13829788188 / jacky.chen@cato-chem.com