21-Dehydro Flunisolide CAS 1188271-69-3
| CAS No. | 1188271-69-3 |
| Molecular Formula | C24H29FO6 |
| Molecular Weight | 432.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 21-Dehydro Flunisolide.
21-Dehydro Flunisolide (CAS 1188271-69-3), molecular formula C24H29FO6 and molecular weight 432.48 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H29FO6, 21-Dehydro Flunisolide contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 432.48 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 21-Dehydro Flunisolide 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 | C24H29FO6 |
| Molecular Weight | 432.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
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Recommended Standards
- FA-Phe-Phe-OH (CAS 83661-95-4)
- Fluprednidene Acetate (CAS 1255-35-2)
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- Triamcinolone Acetonide Impurity N2 (CAS 1893-84-1)
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- (S)-5-oxo-2-(trifluoromethyl)pyrrolidine-2-carboxylic acid (CAS 1153474-63-5)
- 2-(Methoxymethyl)oxirane (CAS 930-37-0)
- 2,4-Bis(trifluoromethyl)quinoline (CAS 91915-68-3)
- 3-Chloro-2-[(1,3-thiazol-5-yl)methoxy]-5-(trifluoromethyl)pyridine (CAS 477846-05-2)
- ethyl 2-(tert-butoxycarbonylamino)-4,4,4-trifluoro-butanoate (CAS 2322231-10-5)
- (1H-Pyrrolo[2,3-b]pyridin-2-yl)methanol (CAS 1269479-13-1)
- (3AS,6aR)-3,3a,4,6a-tetrahydro-2H-cyclopenta[b]furan-2-one (CAS 56487-70-8)
- Desethylcarbamoyl Cabergoline-d5 (CAS 1316849-28-1)
- Eledoisin Related Peptide (CAS 2990-43-4)
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