Telmisartan Impurity 63 CAS CATO-C4X-135963
| CAS No. | CATO-C4X-135963 |
| Molecular Formula | C13H17N2O5S |
| Molecular Weight | 313.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Telmisartan Impurity 63 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.
As a process- or degradation-related impurity, Telmisartan Impurity 63 (CAS CATO-C4X-135963, C13H17N2O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Telmisartan Impurity 63 (C13H17N2O5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.5, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 313.35 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C13H17N2O5S |
| Molecular Weight | 313.35 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 6.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Telmisartan Standards
- Telmisartan Impurity 94 (CAS CATO-C4X-135994)
- Telmisartan Impurity N2 (CAS 34981-09-4)
- Telmisartan Impurity 87 (CAS CATO-C4X-135987)
- Telmisartan Impurity 3 (CAS 133085-87-7)
- Telmisartan Impurity 12 (CAS 114772-38-2)
- Telmisartan Impurity 40 (CAS 887583-89-3)
- Telmisartan EP Impurity A (CAS 152628-02-9)
- Telmisartan Impurity 42 (CAS 1860008-29-2)
Recommended Standards
- Dobutamine Impurity 34 (CAS CATO-C4X-129834)
- Ciprofloxacin EP Impurity B (CAS 93107-11-0)
- Nalmefene Impurity 3 (CAS CATO-C4X-12683)
- Codeine Phosphate Hemihydrate EP Impurity K (CAS 508-54-3)
- Fosaprepitant Impurity 36 (CAS 930-63-2)
- Abemaciclib impurity 104 (CAS 150807-86-6)
- N-Nitroso Diphenhydramine EP Impurity A-d5 (CAS CATO-C4X-142419)
- 4-Chloro-2-fluoro-n-methylbenzenesulfonamide (CAS 1089634-90-1)
- N-carbamoylbenzenesulfonamide (CAS 35207-08-0)
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- 2,3-Dimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 54365-72-9)
- 6,6'-Disulfanediylbis(2-bromoaniline) (CAS 1820605-11-5)
- Acotiamide Impurity 25 (CAS CATO-C4X-111425)
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