Desoximetasone Impurity 17 (Dexamethasone Sodium Metasulphobenzoate) CAS 3936-02-5
| CAS No. | 3936-02-5 |
| Molecular Formula | C29H32FO9S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Desoximetasone Impurity 17 (Dexamethasone Sodium Metasulphobenzoate) (CAS 3936-02-5) is a high-purity analytical reference standard with the molecular formula C29H32FO9SNa and a molecular weight of 598.61 g/mol.
Based on its molecular formula C29H32FO9SNa, Desoximetasone Impurity 17 (Dexamethasone Sodium Metasulphobenzoate) 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 598.61 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C29H32FO9S Na |
| Molecular Weight | 598.61 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Desoximetasone Standards
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- Desoximetasone Impurity 5 (CAS 4306-57-4)
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- Desoximetasone Impurity 3 (CAS 59796-52-0)
- Desoximetasone Impurity 2 (CAS CATO-C4X-16092)
Recommended Standards
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- 4-(2,4-Dichloro-benzyloxy)-3-methoxy-benzoic acid (CAS 113457-31-1)
- tert-butyl N-(3-hydroxy-1-methyl-cyclopentyl)carbamate (CAS 1780760-71-5)
- Ruthenium, (adenosine-N6)pentaammine-, tribromide (CAS 67848-03-7)
- N-(1,4,5,6-Tetrahydrocyclopenta[c]pyrazol-3-yl)cyclopropanecarboxamide (CAS 508229-82-1)
- 2,3-Di(pyridin-2-yl)quinoxaline (CAS 23309-74-2)
- Ethyl 2-(4-methyl-1,4-diazepan-1-yl)benzoate (CAS 912569-58-5)
- 2-(2,4-Dichlorophenyl)-3-methylbutanoic acid (CAS 83340-81-2)
- Liraglutide-d8 Tritrifluoroacetate (CAS CATO-C4X-199223)
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