Faropenem Impurity 76 CAS CATO-C4X-128976
| CAS No. | CATO-C4X-128976 |
| Molecular Formula | C15H21NO6S |
| Molecular Weight | 343.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Faropenem Impurity 76 (CAS CATO-C4X-128976), a pharmacopoeial impurity reference standard (molecular formula C15H21NO6S, MW 343.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Faropenem Impurity 76 (C15H21NO6S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C15H21NO6S |
| Molecular Weight | 343.40 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 11 Disodium Salt (CAS 130609-10-8)
- Faropenem Impurity 90 (CAS CATO-C4X-128990)
- Faropenem Impurity 72 (CAS CATO-C4X-128972)
- Faropenem Impurity 37 (CAS CATO-C4X-128937)
- Faropenem Impurity 38 (CAS CATO-C4X-128938)
- Faropenem Impurity 81 (CAS CATO-C4X-128981)
- Faropenem Impurity 71 (CAS CATO-C4X-128971)
- Faropenem Impurity 15 (CAS 106560-32-1)
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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