Desoximetasone Impurity N3 CAS 151265-33-7
| CAS No. | 151265-33-7 |
| Molecular Formula | C22H28O4 |
| Molecular Weight | 356.46 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.
Desoximetasone Impurity N3 (CAS 151265-33-7) is a certified pharmaceutical impurity reference standard with the molecular formula C22H28O4 and a molecular weight of 356.46 g/mol.
Structurally, Desoximetasone Impurity N3 (C22H28O4) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 356.46 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Desoximetasone Impurity N3 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H28O4 |
| Molecular Weight | 356.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
Related Desoximetasone Standards
- Desoximetasone Impurity 3 (CAS 59796-52-0)
- Desoximetasone EP Impurity F (CAS 184899-80-7)
- Desoximetasone Impurity 1 (CAS 2770242-92-5)
- Desoximetasone Impurity 6 (CAS 432-54-2)
- Desoximetasone Impurity 5 (CAS 4306-57-4)
- Desoximetasone EP Impurity H (CAS 52092-65-6)
- Desoximetasone Impurity 2 (CAS CATO-C4X-16092)
- Desoximetasone Impurity 4 (CAS CATO-C4X-16094)
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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