Faropenem Impurity 73 CAS CATO-C4X-128973
| CAS No. | CATO-C4X-128973 |
| Molecular Formula | C14H20N2O7S |
| Molecular Weight | 360.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Faropenem Impurity 73.
CATO supplies Faropenem Impurity 73 (CAS CATO-C4X-128973), a pharmacopoeial impurity reference standard (molecular formula C14H20N2O7S, MW 360.38 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C14H20N2O7S, Faropenem Impurity 73 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 360.38 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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 | C14H20N2O7S |
| Molecular Weight | 360.38 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 15 (CAS 106560-32-1)
- Faropenem Impurity 41 (CAS CATO-C4X-128941)
- Faropenem Impurity 11 Disodium Salt (CAS 130609-10-8)
- Faropenem Impurity 76 (CAS CATO-C4X-128976)
- Faropenem Impurity 79 (CAS CATO-C4X-128979)
- Faropenem Impurity 90 (CAS CATO-C4X-128990)
- Faropenem Impurity 72 (CAS CATO-C4X-128972)
- Faropenem Impurity 37 (CAS CATO-C4X-128937)
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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