Deflazacort Impurity 92 CAS CATO-C4X-202192
| CAS No. | CATO-C4X-202192 |
| Molecular Formula | C29H28BNO7 |
| Molecular Weight | 513.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Deflazacort Impurity 92 (CAS CATO-C4X-202192) is a certified pharmaceutical impurity reference standard with the molecular formula C29H28BNO7 and a molecular weight of 513.35 g/mol.
Structurally, Deflazacort Impurity 92 (C29H28BNO7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.5, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 513.35 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C29H28BNO7 |
| Molecular Weight | 513.35 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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Deflazacort Standards
- Deflazacort Impurity 5 (CAS 1425664-43-2)
- Deflazacort Impurity 11 (CAS CATO-C4X-233611)
- Deflazacort 6β-Hydroxy (CAS 1262053-48-4)
- Deflazacort-d3 (Major) (CAS CATO-CCAD303317)
- Deflazacort (CAS 14484-47-0)
- Deflazacort Impurity 3 (CAS 13649-84-8)
- Deflazacort 21-Formate (CAS CATO-C4X-233613)
- Deflazacort 6a-hydroxy-21-desacetyl (CAS 87539-45-5)
Recommended Standards
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- 4＇-Methoxyacetophenone (CAS 100-06-1)
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