Telmisartan EP Impurity C CAS 144702-26-1
| CAS No. | 144702-26-1 |
| Molecular Formula | C37H38N4O2 |
| Molecular Weight | 570.72 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Telmisartan EP Impurity C (CAS 144702-26-1), a pharmacopoeial impurity reference standard (molecular formula C37H38N4O2, MW 570.72 g/mol) used for the identification and quantification of trace impurities in APIs.
Telmisartan EP Impurity C (C37H38N4O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Telmisartan EP Impurity C meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C37H38N4O2 |
| Molecular Weight | 570.72 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 4 |
Related Telmisartan Standards
- Telmisartan Impurity 15 (CAS 1026438-56-1)
- Telmisartan Impurity 35 (CAS 2342587-28-2)
- Telmisartan EP Impurity J (CAS 885045-90-9)
- Telmisartan Impurity 95 (CAS CATO-C4X-135995)
- Telmisartan Impurity 32 (CAS 528560-94-3)
- Telmisartan impurity 72 (CAS CATO-C4X-135972)
- Telmisartan EP Impurity I (CAS 528560-93-2)
- Telmisartan Impurity 30 (CAS 1338830-37-7)
Recommended Standards
- (2S)-[(2'S)-t-Boc-amino-(3'S)-methyl-1-pentyloxy]-3-phenylpropionyl-methionine Sulfone, Isopropyl Ester (CAS 1356016-69-7)
- Methyl 2-3-4-6-tetra-O-benzyl-β-D-thiogalactopyranoside (CAS 97205-08-8)
- 3-(7-(Anthracen-9-yl)-9,9-dimethyl-9H-fluoren-2-yl)fluoranthene (CAS 653599-44-1)
- Benzoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, 4-(1,1-dimethylethyl)-2-[5-(1,1-dimethylethyl)-2,3-dihydro-2-oxo-3-benzofuranyl]phenyl ester (CAS 1261240-30-5)
- Nintedanib Impurity 156 (CAS 1040320-04-4)
- Indobufen Impurity 36 (CAS 2696-84-6)
- Sodium Valproate Impurity 42 (CAS 258264-00-5)
- 2,5-Dichloro-4-(difluoromethoxy)phenacyl bromide (CAS 1807037-65-5)
- N-[5-chloro-2-nitro-4-(trifluoromethoxy)phenyl]acetamide (CAS 1455432-43-5)
- 4,5,6,7-Tetrahydropyrazolo[1,5-a]pyridine-4-carboxylic acid (CAS 1553175-83-9)
- 1-Boc-octahydropyrrolo[3,4-b]pyridine (CAS 159877-36-8)
- 2-(2-Methyl-3-(trifluoromethyl)phenyl)acetic acid (CAS 1000546-18-8)
- Fluconazole Impurity 46 (CAS 2013304-99-7)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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