Cefcapene Impurity 90 Disodium Salt CAS 28242-91-3 (free acid)
| CAS No. | 28242-91-3 (free acid) |
| Molecular Formula | C14H14N2O8S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cefcapene Impurity 90 Disodium Salt 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.
Cefcapene Impurity 90 Disodium Salt (CAS 28242-91-3 (free acid)) is a certified pharmaceutical impurity reference standard with the molecular formula C14H14N2O8SNa and a molecular weight of 393.32 g/mol.
Based on its molecular formula C14H14N2O8SNa, Cefcapene Impurity 90 Disodium Salt 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 393.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C14H14N2O8S 2*Na |
| Molecular Weight | 393.32 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cefcapene Standards
- Cefcapene Pivoxil (CAS 105889-45-0)
- Cefcapene Impurity 89 (CAS 105889-64-3)
- Cefcapene Impurity 2 (CAS 105889-80-3)
- Cefcapene Impurity 22 (CAS 118109-49-2)
- Cefcapene Pivoxil Impurity 12 (CAS 133217-74-0)
- Cefcapene (CAS 135889-00-8)
- Cefcapene-d5 Trifluoroacetate (CAS 135889-00-8 (non-labelled, free base))
- Cefcapene Impurity 36 (CAS 1360188-88-0)
Recommended Standards
- Piperacillin Monohydrate EP Impurity B (CAS 64817-22-7)
- Pitavastatin Impurity 35 (CAS CATO-C4X-103735)
- Lornoxicam impurity 71 (CAS CATO-C4X-201671)
- Rivaroxaban Impurity 202 (CAS CATO-C4X-1090202)
- (1R,2R)-N-Ethyl-2-fluoro-N-phenylcyclopropane-1-sulfonamide (CAS 2375924-20-0)
- (S)-N,N-Dimethyl-5-oxotetrahydrofuran-2-carboxamide (CAS 146917-05-7)
- 4-Ethyl-5-methylisoxazol-3-ol (CAS 932-12-7)
- Tert-butyl 6-oxa-2-azaspiro[3.4]Octane-2-carboxylate (CAS 1419590-40-1)
- Ethyl 5-cyanobicyclo[3.2.2]Nonane-1-carboxylate (CAS 24238-75-3)
- Cholecystokinin Octapeptide (1-3) (desulfated) H-Asp-Tyr-Met-OH (CAS 121880-94-2)
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