Cefaclor Impurity 10 CAS CATO-C4X-127010
| CAS No. | CATO-C4X-127010 |
| Molecular Formula | C17H18N2O3 |
| Molecular Weight | 298.34 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 298.34 g/mol gives Cefaclor Impurity 10 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Cefaclor Impurity 10 (CAS CATO-C4X-127010), a pharmacopoeial impurity reference standard (molecular formula C17H18N2O3, MW 298.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefaclor Impurity 10 (C17H18N2O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 298.34 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C17H18N2O3 |
| Molecular Weight | 298.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >90% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Cefaclor Standards
- Cefaclor Impurity 16 (CAS CATO-C4X-127016)
- Cefaclor Impurity 59 (CAS CATO-C4X-127059)
- Cefaclor Impurity 39 (CAS CATO-C4X-127039)
- Cefaclor Impurity 65 (CAS CATO-C4X-127065)
- Cefaclor Impurity 63 (CAS CATO-C4X-127063)
- Cefaclor Impurity 41 (CAS CATO-C4X-127041)
- Cefaclor Impurity 29 (CAS CATO-C4X-127029)
- Cefaclor EP Impurity G-Isomer 1 (CAS 67308-21-8)
Recommended Standards
- Cefotaxime Impurity 46 (CAS 689293-67-2)
- Famotidine Impurity 87 (CAS CATO-C4X-139287)
- Sildenafil Impurity 248 (CAS 139756-30-2)
- Rizatriptan impurity 17 (CAS CATO-C4X-175217)
- Abemaciclib Impurity 44 (CAS CATO-C4X-293744)
- Ixabepilone Impurity 3 (CAS 219989-85-2)
- Gefitinib Impurity 1 (CAS 1502829-45-9)
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- Sperm Activating Peptide, Sea Urchin (CAS 140653-27-6)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com