Dexamethasone Impurity 17 CAS CATO-C1091485
| CAS No. | CATO-C1091485 |
| Molecular Formula | C22H27FO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Dexamethasone Impurity 17 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.
Dexamethasone Impurity 17 (CAS CATO-C1091485), molecular formula C22H27FO4H2O and molecular weight 392.47 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Dexamethasone Impurity 17 (C22H27FO4H2O) contains a flavonoid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 392.47 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.
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 Dexamethasone Impurity 17 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 | C22H27FO4 H2O |
| Molecular Weight | 392.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
Related Dexamethasone Standards
- Dexamethasone EP Impurity H (CAS 10106-41-9)
- Dexamethasone Impurity 116 (CAS 107419-73-8)
- Dexamethasone EP Impurity G (CAS 1177-87-3)
- Dexamethasone impurity 63 (CAS 1202001-99-7)
- Dexamethasone impurity 65 (CAS 1202002-01-4)
- Dexamethasone EP Impurity E (CAS 13209-41-1)
- Dexamethasone Impurity 112 (CAS 134429-26-8)
- Dexamethasone impurity 90 (CAS 134429-31-5)
Recommended Standards
- Methyl 4-bromo-5-(3-chlorophenyl)-1h-pyrazole-3-carboxylate (CAS 1319143-37-7)
- tert-Butyl 3-(iodomethyl)-2-oxa-7-azaspiro[4.4]nonane-7-carboxylate (CAS 2126161-89-3)
- 3-Hydroxy-6-methoxy-1,2-benzisoxazole (CAS 89942-57-4)
- 2-Fluoro-4-iodo-5-methylpyridine (CAS 153034-94-7)
- 1-(2,2,2-Trifluoroacetyl)piperidine-2-carbonitrile (CAS 144122-19-0)
- 2-[(2,6-Dibromo-4-formylphenoxy)methyl]benzonitrile (CAS 443126-10-1)
- 6-Iodoquinoline-8-carboxylic acid (CAS 70585-50-1)
- n-(4-Chloro-3-fluorobenzyl)butan-1-amine (CAS 1249233-93-9)
- Risperidone EP Impurity E (CAS 1346602-28-5)
- Semaglutide Impurity 145 (CAS CATO-C4X-2226145)
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