Cefepime Impurity 25 CAS CATO-C4X-119325
| CAS No. | CATO-C4X-119325 |
| Molecular Formula | C25H33N7O8S2 |
| Molecular Weight | 623.70 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 Cefepime Impurity 25.
Cefepime Impurity 25 (CAS CATO-C4X-119325) is a certified pharmaceutical impurity reference standard with the molecular formula C25H33N7O8S2 and a molecular weight of 623.70 g/mol.
Structurally, Cefepime Impurity 25 (C25H33N7O8S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 623.70 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Cefepime Impurity 25 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 | C25H33N7O8S2 |
| Molecular Weight | 623.70 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 2 |
Related Cefepime Standards
- Cefepime Impurity 32 (CAS CATO-C4X-119332)
- Cefepime Impurity 16 (CAS CATO-C4X-119316)
- Cefepime EP Impurity B (CAS CATO-C4X-11932)
- Cefepime EP Impurity B (CAS 2923899-40-3)
- Cefepime Impurity 30 (CAS CATO-C4X-119330)
- Cefepime Impurity 41 (CAS CATO-C4X-119341)
- Cefepime Impurity 14 (CAS CATO-C4X-119314)
- Cefepime Impurity 17 (CAS CATO-C4X-119317)
Recommended Standards
- N-(acid-PEG3)-N-bis(PEG3-azide) (CAS 2182602-17-9)
- Triamcinolone Benetonide (CAS 31002-79-6)
- 5'-O-DMT-N6-ibu-dA (CAS 190834-10-7)
- Baricitinib Impurity 92 (CAS CATO-C4X-226092)
- Dimemorfan Phosphate Impurity 11 (CAS CATO-C4X-335811)
- Efinaconazole Impurity 39 (CAS 2122222-10-8)
- Avibactam Impurity 29 (CAS CATO-C4X-134829)
- 1-(3-Amino-1-pyrazolyl)-2-methyl-2-propanol (CAS 1003013-47-5)
- 4-Amino-2-chloro-6-ethoxyphenol (CAS 96009-72-2)
- 3-Chloro-4-(2-ethylphenoxy)aniline (CAS 946775-36-6)
- 1-{4-[(2-methoxyethyl)sulfanyl]phenyl}ethan-1-amine (CAS 1153516-08-5)
- N-Boc Desmethyl Fluvoxamine (CAS 192876-03-2)
- 1-Bromo-2-(bromomethyl)-3,5-bis(trifluoromethyl)benzene (CAS 1807224-31-2)
- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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