Flumethasone Impurity 3 CAS CATO-C4X-19103
| CAS No. | CATO-C4X-19103 |
| Molecular Formula | C24H30F2O6 |
| Molecular Weight | 452.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Flumethasone Impurity 3 is closely related to a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Flumethasone Impurity 3 (CAS CATO-C4X-19103) is a certified pharmaceutical impurity reference standard with the molecular formula C24H30F2O6 and a molecular weight of 452.49 g/mol.
Structurally, Flumethasone Impurity 3 (C24H30F2O6) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. 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 452.49 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Flumethasone 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 | C24H30F2O6 |
| Molecular Weight | 452.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Flumethasone Standards
- Flumethasone Impurity 4 (CAS CATO-C4X-19104)
- Flumethasone Impurity 5 (CAS CATO-C4X-19105)
- Flumethasone Acetate (CAS 2823-42-9)
- Flumethasone-d3 (CAS CATO-CCAD303315)
- Flumethasone Impurity 1 (CAS 60895-22-9)
- Flumethasone Methyl (CAS CATO-C4X-19106)
- Flumethasone (CAS 2135-17-3)
- Flumethasone 21-Pivalate (CAS 2002-29-1)
Recommended Standards
- Pazopanib Impurity 46(Mixture of Isomers) (CAS CATO-C4X-172546)
- Fluticasone Propionate EP Impurity A (CAS 65429-42-7)
- Fluticasone Impurity 102 (CAS CATO-C4X-1650102)
- Fluocinolone Acetonide EP Impurity J (CAS 1361531-95-4)
- Tiotropium Bromide Impurity 19 (CAS 498-46-4)
- Oxiracetam Impurity 21 (CAS 85153-60-2)
- Pidotimod Impurity 27 (CAS CATO-C4X-107827)
- Cloquintocet-1-Methylhexyl Ester (CAS 99607-70-2)
- 1-(2,2,6-Trimethylcyclohexyl)hexan-3-ol (CAS 70788-30-6)
- 2-(4-(Difluoromethoxy)phenyl)acetonitrile (CAS 41429-16-7)
- Carfilzomib Impurity 75 (CAS 2381627-87-6)
- Clindamycin Impurity 152 (CAS CATO-C4X-1341152)
- 4-Methoxybutane-2-sulfonamide (CAS 1247342-46-6)
- D-Lys16-Tirzepatide (CAS CATO-CPTD788918)
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