Telmisartan EP Impurity G CAS 144702-27-2
| CAS No. | 144702-27-2 |
| Molecular Formula | C33H29N5 |
| Molecular Weight | 495.62 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Telmisartan EP Impurity G 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.
Telmisartan EP Impurity G (CAS 144702-27-2) is a certified pharmaceutical impurity reference standard with the molecular formula C33H29N5 and a molecular weight of 495.62 g/mol.
Structurally, Telmisartan EP Impurity G (C33H29N5) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 495.62 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C33H29N5 |
| Molecular Weight | 495.62 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 5 |
Related Telmisartan Standards
- Telmisartan Impurity 101 (CAS 1338830-39-9)
- Telmisartan Impurity 83 (CAS CATO-C4X-135983)
- Telmisartan Impurity 24 (CAS 144701-81-5)
- Telmisartan Impurity 26 (CAS CATO-C4X-135926)
- Telmisartan Impurity 82 (CAS 1159493-10-3)
- Telmisartan Impurity 25 (CAS CATO-C4X-135925)
- Telmisartan Impurity 102 (CAS CATO-C4X-1359102)
- Telmisartan EP Impurity F (CAS 915124-86-6)
Recommended Standards
- (S)-N-((S)-6-Amino-1-((S)-2-carbamoylpyrrolidin-1-yl)-1-oxohexan-2-yl)-1-((S)-2-amino-5-guanidinopentanoyl)pyrrolidine-2-carboxamide (CAS 69355-89-1)
- Mibefradil (CAS 116644-53-2)
- (S)-2-(3-(1,4-dimethyl-1H-1,2,3-triazol-5-yl)-5-(phenyl(tetrahydro-2H-pyran-4-yl)methyl)-5H-pyrido[3,2-b]indol-7-yl)propan-2-ol (CAS 1800340-40-2)
- Lysolecithin (CAS 14863-27-5)
- Roxadustat Impurity 132 (CAS CATO-C4X-2213132)
- Varenicline Impurity 45 (CAS 230615-05-1)
- Tucatinib Impurity 63 (CAS CATO-C4X-260563)
- 1-(5-Chloro-2-methylphenyl)heptan-1-one (CAS 1352207-66-9)
- 1-(4-Methanesulfonyl-phenyl)-2-phenyl-ethane-1,2-dione (CAS 54945-18-5)
- 1-Chloro-2-(difluoromethyl)-4-iodobenzene (CAS 1261479-11-1)
- 2-(tert-butoxycarbonylamino)-2-(1-methylpyrazol-4-yl)acetic acid (CAS 1394970-92-3)
- Raltitrexed Impurity 42 (CAS CATO-C4X-138642)
- (2-(3-Chlorostyryl)-5-methyloxazol-4-yl)methanol (CAS 89724-05-0)
- Tau Peptide (304-318) trifluoroacetate salt (CAS 330456-49-0)
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