Desoximetasone Impurity 3 CAS 59796-52-0
| CAS No. | 59796-52-0 |
| Molecular Formula | C22H28O4 |
| Molecular Weight | 356.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Desoximetasone Impurity 3 is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Desoximetasone Impurity 3 (CAS 59796-52-0), a pharmacopoeial impurity reference standard (molecular formula C22H28O4, MW 356.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C22H28O4, Desoximetasone Impurity 3 contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 356.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Desoximetasone Impurity 3 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 | 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.) | 1974 |
Related Desoximetasone Standards
- Desoximetasone Impurity N3 (CAS 151265-33-7)
- 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)
Recommended Standards
- Butylhydroxyanisole Impurity 3 (CAS CATO-C4X-15703)
- Estradiol Impurity 24 (CAS 3434-88-6)
- Fudosteine impurity 76 (CAS CATO-C4X-144776)
- Norethisterone Acetate EP Impurity F (CAS 6856-27-5)
- Dobutamine Impurity 46 (CAS CATO-C4X-129846)
- Carfilzomib Impurity 3 (CAS CATO-C4X-10223)
- Ceftriaxone Impurity 40 (CAS CATO-C4X-116340)
- 5-Chloro-1-(4-chlorobenzyl)-6-oxo-1,6-dihydropyridine-3-carboxylic acid (CAS 339024-38-3)
- 2-(3,5-Difluorophenoxy)ethanamine (CAS 914200-00-3)
- 3-Bromo-2-tert-Butylimidazo[1,2-a]pyrimidine (CAS 904813-42-9)
- 5-(tert-Butyl)pyridin-3-ol (CAS 1243371-93-8)
- (11bR)-2,6-Bis[4-(tert-butyl)phenyl]-8,9,10,11,12,13,14,15-octahydro-4-hydroxy-4-oxide-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin (CAS 1569807-27-7)
- 3-((3-Chloro-2-methylphenyl)amino)-5,5-dimethylcyclohex-2-en-1-one (CAS 327981-30-6)
- Peptide Impurity 06 (CAS CATO-CPTD788806)
Why CATO?
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