Faropenem Impurity 68 CAS 1690457-73-8
| CAS No. | 1690457-73-8 |
| Molecular Formula | C8H9NO3S |
| Molecular Weight | 199.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Faropenem Impurity 68 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.
Faropenem Impurity 68 (CAS 1690457-73-8) is a certified pharmaceutical impurity reference standard with the molecular formula C8H9NO3S and a molecular weight of 199.23 g/mol.
Structurally, Faropenem Impurity 68 (C8H9NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 199.23 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.
Physical & Chemical Properties
| Molecular Formula | C8H9NO3S |
| Molecular Weight | 199.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Faropenem Standards
- Faropenem Impurity 2 (CAS CATO-C4X-12892)
- Faropenem Impurity 69 (CAS CATO-C4X-128969)
- Faropenem Impurity 23 (CAS CATO-C4X-128923)
- Faropenem Impurity 22 (CAS CATO-C4X-128922)
- Faropenem Impurity 83 (CAS CATO-C4X-128983)
- Faropenem Impurity 80 (CAS CATO-C4X-128980)
- Faropenem Impurity 40 (CAS CATO-C4X-128940)
- Faropenem Impurity 6 (CAS CATO-C4X-12896)
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- Cupric L-(+)-tartrate trihydrate (CAS 5893-71-0)
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- 1-Trifluoromethanesulfonylazetidin-3-ol (CAS 1339116-75-4)
- 1H-Indazole-3-carbonitrile (CAS 50264-88-5)
- 1-Azido-1,2-Benziodoxol-3(1h)-One (CAS 160732-56-9)
- 4-Chloro-5-(2-methoxyethyl)-2-methylpyrimidine (CAS 1403565-09-2)
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