Faropenem Impurity 38 CAS CATO-C4X-128938
| CAS No. | CATO-C4X-128938 |
| Molecular Formula | C14H21NO6S |
| Molecular Weight | 331.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Faropenem Impurity 38 (CAS CATO-C4X-128938), a pharmacopoeial impurity reference standard (molecular formula C14H21NO6S, MW 331.38 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Faropenem Impurity 38 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 331.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Faropenem Impurity 38 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.
Physical & Chemical Properties
| Molecular Formula | C14H21NO6S |
| Molecular Weight | 331.38 g/mol |
| Purity | >90% |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 37 (CAS CATO-C4X-128937)
- Faropenem Impurity 81 (CAS CATO-C4X-128981)
- Faropenem Impurity 71 (CAS CATO-C4X-128971)
- Faropenem Impurity 72 (CAS CATO-C4X-128972)
- Faropenem Impurity 10 (CAS 106559-80-2)
- Faropenem Impurity 90 (CAS CATO-C4X-128990)
- Faropenem Impurity 76 (CAS CATO-C4X-128976)
- Faropenem Impurity 62 (CAS CATO-C4X-128962)
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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