Entecavir Impurity 14 CAS 142217-80-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 142217-80-9 |
| Molecular Formula | C53H49N5O4 |
| Molecular Weight | 819.99 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Entecavir Impurity 14 (CAS 142217-80-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C53H49N5O4. Molecular weight: 819.99 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C53H49N5O4 |
| Molecular Weight | 819.99 g/mol |
| 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) | 32.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 5 |
Related Entecavir Standards
- Entecavir Impurity 34 (CAS 1354695-79-6)
- Entecavir Impurity 13 (CAS 142217-79-6)
- Entecavir Impurity 7 (CAS 1263274-06-1)
- Entecavir Impurity 12 (CAS 142217-78-5)
- Entecavir Impurity 79 (CAS CATO-C4X-107779)
- Entecavir Impurity 53 (CAS CATO-C4X-107753)
- Entecavir Impurity 72 (CAS CATO-C4X-107772)
- Entecavir Impurity 82 (CAS CATO-C4X-107782)
Recommended Standards
- 2,2',7,7'-Tetraiodo-9,9'-spirobi[fluorene] (CAS 137181-59-0)
- Avatrombopag Impurity 80 (CAS CATO-C4X-223480)
- Tacrolimus impurity 62 (CAS CATO-C4X-130062)
- Lornoxicam Impurity 19 Sodium Salt (CAS CATO-C4X-201619)
- Lifitegrast Impurity 142 (CAS 2098810-32-1)
- 2-(6-Cyano-5-(difluoromethyl)-4-fluoropyridin-3-yl)acetic acid (CAS 1805086-86-5)
- Ethyl 6-amino-5-cyano-4-(3-methoxy-4-((4-methylbenzyl)oxy)phenyl)-2-methyl-4H-pyran-3-carboxylate (CAS 337505-94-9)
- N-(4-Iodophenyl)-2-(4-phenylpiperazin-1-yl)acetamide (CAS 329779-34-2)
- dimethyl 1,3-dimethylcyclopentane-1,3-dicarboxylate (CAS 546101-12-6)
- Integrin Binding Peptide trifluoroacetate salt (CAS 278792-07-7)
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