Telmisartan Impurity N5 CAS 567-15-7
| CAS No. | 567-15-7 |
| Molecular Formula | C14H8F6 |
| Molecular Weight | 290.20 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 Telmisartan Impurity N5.
CATO supplies Telmisartan Impurity N5 (CAS 567-15-7), a pharmacopoeial impurity reference standard (molecular formula C14H8F6, MW 290.20 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Telmisartan Impurity N5 (C14H8F6) is characterized by fluorine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Telmisartan Impurity N5 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H8F6 |
| Molecular Weight | 290.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related Telmisartan Standards
- Telmisartan Impurity 21 (CAS 147404-72-6)
- Telmisartan Impurity 11 (CAS 884330-09-0)
- Telmisartan Impurity 20 (CAS 150766-86-2)
- Telmisartan Impurity 65 (CAS CATO-C4X-135965)
- Telmisartan Impurity 34 (CAS 152628-01-8)
- Telmisartan Impurity 67 (CAS CATO-C4X-135967)
- Telmisartan Impurity 68 (CAS CATO-C4X-135968)
- Telmisartan Impurity 40 (CAS 887583-89-3)
Recommended Standards
- 1,1,2,2-Tetrafluoro-1,2-bis(4-fluorophenyl)ethane (CAS 4100-99-6)
- 3,3'-Bis(trifluoromethyl)-1,1'-biphenyl (CAS 580-82-5)
- Tert-butyl 2-(bromomethyl)-7-azabicyclo[2.2.1]Heptane-7-carboxylate (CAS 1824132-69-5)
- 4,4'-Bis(trifluoromethyl)-1,1'-biphenyl (CAS 581-80-6)
- Indobufen Impurity 83 (CAS CATO-C4X-179283)
- Doxepin Impurity 2 (CAS 131523-93-8)
- Xanomeline impurity 53 (CAS CATO-C4X-330153)
- Ethyl 1-methyl-6-oxo-1,6-dihydropyridine-2-carboxylate (CAS 61272-27-3)
- Sildenafil Impurity 101 (CAS CATO-C4X-1128101)
- Neodymium nitrate hydrate, 99.90% (CAS 13746-96-8)
- 6,6-Dimethyl-1-azaspiro[3.5]nonan-2-one (CAS 1340576-34-2)
- 5-Hydroxy-2,2-dimethylpentanoic acid (CAS 736099-57-3)
- Tert-butyl 5-amino-3-methyl-1H-indazole-1-carboxylate (CAS 599183-32-1)
- Endo-[Glu]31-Liraglutide (CAS CATO-C4X-199234)
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