Entecavir EP Impurity F CAS 649761-24-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 649761-24-0 |
| Molecular Formula | C27H31N5O2Si |
| Molecular Weight | 485.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Entecavir EP Impurity F (CAS 649761-24-0), a pharmacopoeial impurity standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C27H31N5O2Si. Molecular weight: 485.65 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C27H31N5O2Si |
| Molecular Weight | 485.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 5 |
Related Entecavir Standards
- Entecavir Impurity 15 (CAS 142217-81-0)
- Entecavir Impurity 35 (CAS 1354695-82-1)
- Entecavir Impurity 46 (CAS CATO-C4X-107746)
- Entecavir Impurity 47 (CAS CATO-C4X-107747)
- Entecavir Impurity 48 (CAS CATO-C4X-107748)
- Entecavir Impurity 54 (CAS 1354695-86-5)
- Entecavir Impurity 55 (CAS 1354695-84-3)
- Entecavir Impurity 56 (CAS 1354695-85-4)
Recommended Standards
- Tetraacetyl Phytosphingosine (CAS 13018-48-9)
- Ebastine N-Oxide (CAS 1256285-71-8)
- N-mesityl-2-((4-(p-tolyl)-5-((p-tolylamino)methyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 335217-91-9)
- Apremilast Impurity 44 (CAS 2096492-44-1)
- Olaparib Impurity 11 (CAS 2250242-62-5)
- 1-(Chloroacetyl)-2,2,4-trimethyl-1,2,3,4-tetrahydro-6-quinolinyl methyl ether (CAS 376371-15-2)
- 2-(4-Fluorophenyl)-1-(pyridin-3-yl)ethan-1-one (CAS 74767-71-8)
- 2-((4-(Trifluoromethyl)pyridin-2-yl)oxy)ethan-1-amine (CAS 1428233-16-2)
- 2-Methyl-n2-(2,2,2-trifluoroethyl)propane-1,2-diamine (CAS 1480292-75-8)
- D-[Phe6]-Semaglutide (CAS CATO-C4X-2226213)
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