Telmisartan Impurity 17 CAS 1352492-08-0
| CAS No. | 1352492-08-0 |
| Molecular Formula | C15H12Br2O2 |
| Molecular Weight | 384.06 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Telmisartan Impurity 17 (CAS 1352492-08-0), a pharmacopoeial impurity reference standard (molecular formula C15H12Br2O2, MW 384.06 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system, Telmisartan Impurity 17 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 384.06 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).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H12Br2O2 |
| Molecular Weight | 384.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
Related Telmisartan Standards
- Telmisartan Impurity 22 (CAS 1797894-62-2)
- Telmisartan Impurity 70 (CAS CATO-C4X-135970)
- Telmisartan Impurity 93 (CAS CATO-C4X-135993)
- Telmisartan EP Impurity H (CAS 114772-40-6)
- Telmisartan Impurity 45 (CAS 1098100-86-7)
- Telmisartan Impurity 24 (CAS 884330-17-0)
- Telmisartan EP Impurity E (CAS 884330-12-5)
- Telmisartan Impurity 66 (CAS 885046-20-8)
Recommended Standards
- Benzyl 3,4-dibromo-5-methylbenzoate (CAS 2364584-79-0)
- 2,2-[(Difluoromethylene)bis(oxy)]bis[1,1,1,3,3,3-hexafluoropropane (CAS 162401-06-1)
- 3,5-Dibromo-4-[(4-methylbenzyl)oxy]benzaldehyde (CAS 351066-33-6)
- 2-(6-Chloropyridin-3-yl)-5-methyl-1,3-thiazol-4-yl 2,3,3-trichloroprop-2-enoate (CAS 400080-99-1)
- Ioversol impurity 35 (CAS CATO-C4X-209135)
- Ceftizoxime Impurity 10 (CAS 57028-71-4)
- Cisatracurium Besilate EP Impurity C ((R)-Laudanosine) (CAS 85-63-2)
- (E)-[(2-Bromophenyl)methoxy]({1-[3-(2,3-dihydro-1H-isoindol-2-yl)phenyl]ethylidene})amine (CAS 861207-29-6)
- Methyl 5,6-dichloropyrazine-2-carboxylate (CAS 1802251-49-5)
- 2'-(Trifluoromethyl)-[1,1'-biphenyl]-4-carbaldehyde (CAS 198205-95-7)
- 2-(2,4-Difluorophenyl)-1-(2-fluorophenyl)ethanone (CAS 1483427-28-6)
- N-Nonadecane (CAS 629-92-5)
- 1-(4-Chlorophenyl)-3-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-99-0)
- Peptide Impurity (CAS CATO-CPTD788810)
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