Telithromycin impurity 1 CAS CATO-C4X-27601
| CAS No. | CATO-C4X-27601 |
| Molecular Formula | C42H62N6O11 |
| Molecular Weight | 826.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 826.98 g/mol gives Telithromycin impurity 1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Telithromycin impurity 1 (CAS CATO-C4X-27601, C42H62N6O11) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Telithromycin impurity 1 (C42H62N6O11) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 15.0, corresponding to approximately 15 ring(s) or double-bond equivalent(s). With a molecular weight of 826.98 g/mol, it falls into the 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.
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 | C42H62N6O11 |
| Molecular Weight | 826.98 g/mol |
| Purity | 97%+ |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Telithromycin Standards
Recommended Standards
- Vincristine Impurity 18 (CAS CATO-C4X-208918)
- Cyclocephaloside II (CAS 215776-78-6)
- Vinblastine impurity 8 (CAS CATO-C4X-19848)
- N-(Azido-PEG3)-N-bis(PEG4-Boc) (CAS 2353409-58-0)
- Tegoprazan Impurity 68 (CAS CATO-C4X-229768)
- Sorafenib Impurity 44 (CAS CATO-C4X-112444)
- Flumetasone Impurity 9 (CAS 2541-37-9)
- (2-(Trifluoromethyl)-1H-pyrrolo[2,3-b]pyridin-4-yl)boronic acid (CAS 1014613-47-8)
- Cis-1,4-Bis-(Methylsulfonyloxy)-But-2-Ene (CAS 2303-47-1)
- N’-hydroxy-1-methyl-1H-pyrazole-3-carboximidamide (CAS 1345124-49-3)
- 1-ISobutyl-5-nitro-1h-pyrazole (CAS 1173040-22-6)
- (2s)-2-Amino-n-ethyl-3-methylbutanamide (CAS 169170-45-0)
- 4,4-Dimethyl-N-(prop-2-yn-1-yl)cycloheptan-1-amine (CAS 1485511-07-6)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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