Diflorasone impurity 2 CAS CATO-C4X-24802
| CAS No. | CATO-C4X-24802 |
| Molecular Formula | C32H38F2O8S |
| Molecular Weight | 620.70 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Diflorasone impurity 2 (CAS CATO-C4X-24802), a pharmacopoeial impurity reference standard (molecular formula C32H38F2O8S, MW 620.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C32H38F2O8S, Diflorasone impurity 2 contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 620.70 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), Diflorasone impurity 2 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 | C32H38F2O8S |
| Molecular Weight | 620.70 g/mol |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Diflorasone Standards
- Diflorasone impurity 1 (CAS CATO-C4X-24801)
- Diflorasone Impurity 5 (CAS CATO-C4X-24805)
- Diflorasone Diacetate (CAS 33564-31-7)
- Diflorasone 17-propionate (CAS 924726-89-6)
- Diflorasone 21-Propionate (CAS 541502-98-1)
- Diflorasone impurity 6 (CAS CATO-C4X-24806)
- Diflorasone 21-acetate (CAS 3826-17-3)
- Diflorasone impurity 4 (CAS CATO-C4X-24804)
Recommended Standards
- 4,4',4''-((Nitrilotris(benzene-4,1-diyl))tris(ethyne-2,1-diyl))tribenzonitrile (CAS 848568-92-3)
- Mometasone Impurity 45 (CAS 424787-89-3)
- Tert-butyl (3S)-4-(6-fluoro-7-(2-fluoro-6-methoxyphenyl)-1-(2-isopropyl-4-methylpyridin-3-yl)-2-oxo-1,2-dihydropyrido[2,3-d]pyrimidin-4-yl)-3-methylpiperazine-1-carboxylate (CAS 2614260-21-6)
- Ac-Pen-Arg-Gly-Asp-Cys-OH (Disulfide bond) (CAS 135702-36-2)
- Clofarabine Impurity 9 (CAS CATO-C4X-15939)
- Pazufloxacin Impurity 3 (CAS CATO-C4X-23323)
- Atosiban Impurity 31 (CAS CATO-C4X-229331)
- Dihydro Ferulic Acid 4-O-Sulfate Sodium Salt (CAS 86321-33-7)
- Ketoprofen Impurity 94 (CAS CATO-C4X-147194)
- 6-Piperidin-2-yl-4-trifluoromethyl-1H-pyrazolo[3,4-b]pyridin-3-ylamine (CAS 1316224-12-0)
- 2-((4,6-Dimethylpyrimidin-2-yl)thio)acetonitrile (CAS 116248-36-3)
- 3-((1-Methylazetidin-3-yl)oxy)pyrrolidine dihydrochloride (CAS 2306264-05-9)
- N-Methyl-N-(4-methylphenyl)thiocarbamoyl chloride (CAS 55246-78-1)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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