Ciclesonide-d7 CAS 1225382-70-6
| CAS No. | 1225382-70-6 |
| Molecular Formula | - |
| Molecular Weight | 547.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ciclesonide-d7 (CAS 1225382-70-6), molecular formula C32H37D7O7 and molecular weight 547.73 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ciclesonide-d7 (C32H37D7O7) is characterized by deuterium isotope labeling, a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
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 | C32H37D7O7 |
| Molecular Weight | 547.73 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
Related Ciclesonide Standards
- Ciclesonide EP Impurity A (CAS 141845-81-0)
- Ciclesonide Impurity 11 (CAS CATO-C4X-320111)
- Ciclesonide (CAS 126544-47-6)
- Ciclesonide Impurity 12 (CAS CATO-C4X-320112)
- Ciclesonide Impurity 15 (CAS 3035286-87-1)
- Ciclesonide Impurity 1 (CAS 1005416-98-7)
- Ciclesonide Impurity 16 (CAS CATO-C4X-320116)
- Ciclesonide Impurity 14 (CAS CATO-C4X-320114)
Recommended Standards
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- ethyl N-(pyridin-4-yl)carboximidate (CAS 16705-92-3)
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