Flomoxef Impurity 18 CAS CATO-C4X-138218
| CAS No. | CATO-C4X-138218 |
| Molecular Formula | C27H26Cl2F2N2O6S |
| Molecular Weight | 615.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 615.47 g/mol gives Flomoxef Impurity 18 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Flomoxef Impurity 18 (CAS CATO-C4X-138218, C27H26Cl2F2N2O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Flomoxef Impurity 18 (C27H26Cl2F2N2O6S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 615.47 g/mol, it falls into the high-molecular-weight range. 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).
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), Flomoxef Impurity 18 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 | C27H26Cl2F2N2O6S |
| Molecular Weight | 615.47 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Flomoxef Standards
- Flomoxef Impurity 62 (CAS CATO-C4X-138262)
- Flomoxef Impurity 2 (CAS 1208982-59-5)
- Flomoxef Impurity 17 (CAS 949587-46-6)
- Flomoxef Impurity 5 (CAS 134237-56-2)
- Flomoxef Impurity 37 (CAS 68314-38-5)
- Flomoxef Impurity 3 (CAS 103057-61-0)
- Flomoxef Impurity 49 (CAS CATO-C4X-138249)
- Flomoxef Impurity 1 (CAS 68313-94-0)
Recommended Standards
- Delafloxacin impurity 38 (CAS 906088-99-1)
- Lifitegrast (CAS 1025967-78-5)
- CPL-2 (CAS 726124-20-5)
- R-Lifitegrast (CAS 2271299-08-0)
- Trazodone Impurity 75 (CAS CATO-C4X-177275)
- Apremilast Impurity 58 (CAS CATO-C4X-100958)
- Pinaverium Impurity 3 (CAS 53207-00-4)
- Pirfenidone Impurity 44 (CAS 21901-18-8)
- 2-Amino-N-(2,3-dihydro-benzo[1,4]dioxin-6-ylmethyl)-N-isopropyl-acetamide (CAS 1181793-09-8)
- tert-butyl N-[2-(4-fluorophenyl)-3-hydroxypropyl]carbamate (CAS 1824423-52-0)
- 1-Bromo-8-fluoro-4-(4-fluorophenyl)isoquinolin-3-amine (CAS 338761-92-5)
- FA-Phe-Val-NH2 (CAS 93936-27-7)
- N-Methylperfluorobutanesulfonamide (CAS 68298-12-4)
- Semaglutide-d8 Tetratrifluoroacetate (CAS CATO-C4X-222617)
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