Telmisartan Impurity 31 CAS 158144-54-8
| CAS No. | 158144-54-8 |
| Molecular Formula | C14H12O3 |
| Molecular Weight | 228.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Telmisartan Impurity 31 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Telmisartan Impurity 31 (CAS 158144-54-8, C14H12O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
CATO manufactures Telmisartan Impurity 31 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 | C14H12O3 |
| Molecular Weight | 228.24 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
Related Telmisartan Standards
- Telmisartan Impurity 10 (CAS 136304-93-3)
- Telmisartan Impurity 33 (CAS 114772-34-8)
- Telmisartan Aldehyde Impurity (CAS 112804-58-7)
- Telmisartan Impurity 98 (CAS CATO-C4X-135998)
- Telmisartan Impurity 99 (CAS CATO-C4X-135999)
- Telmisartan Impurity 13 (CAS 152628-00-7)
- Telmisartan Impurity 62 (CAS 884330-08-9)
- Telmisartan Impurity 59 (CAS 1016696-74-4)
Recommended Standards
- Bisoprolol Impurity 117 (CAS 853233-62-2)
- Oseltamivir Impurity 260 (CAS 221386-93-2)
- Posaconazole Impurity 81 (CAS 165115-73-1)
- Oseltamivir Impurity 78 (CAS CATO-C4X-172078)
- Tirofiban Impurity 85 (CAS CATO-C4X-125485)
- Ilaprazole Impurity 86 (CAS CATO-C4X-113086)
- Rivaroxaban impurity 175 (CAS CATO-C4X-1090175)
- Methyl 5-chloro-1-phenyl-4-[(1E)-{[(E)-3-(trifluoromethyl)benzoyloxy]imino}methyl]-1H-pyrazole-3-carboxylate (CAS 321526-32-3)
- Ethyl (E)-2-(2-(4-chlorothiazol-5-yl)vinyl)-6-methoxybenzoate (CAS 365542-32-1)
- 3-((3,4-Dimethyl-2,6-dinitrophenyl)amino)pentan-2-ol (CAS 127971-54-4)
- 1-(Pyridin-3-yl)-3-(trifluoromethyl)-1H-pyrazole-5-carbonitrile (CAS 1255041-97-4)
- (9H-Fluoren-9-yl)methyl (R)-(1-hydroxypentan-2-yl)carbamate (CAS 1139710-50-1)
- (6-Methoxypyridazin-3-yl)boronic acid (CAS 1258867-69-4)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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