Beclometasone Dipropionate Monohydrate EP Impurity V CAS 205105-83-5
| CAS No. | 205105-83-5 |
| Molecular Formula | C25H32O6 |
| Molecular Weight | 428.52 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.
Beclometasone Dipropionate Monohydrate EP Impurity V (CAS 205105-83-5) is a certified pharmaceutical impurity reference standard with the molecular formula C25H32O6 and a molecular weight of 428.52 g/mol.
Structurally, Beclometasone Dipropionate Monohydrate EP Impurity V (C25H32O6) contains a flavonoid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 428.52 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).
As a certified reference material (CRM), Beclometasone Dipropionate Monohydrate EP Impurity V meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C25H32O6 |
| Molecular Weight | 428.52 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
Related Beclometasone Standards
- Beclometasone Dipropionate Monohydrate EP Impurity U (CAS 79578-39-5)
- Beclometasone Impurity 33 (CAS CATO-C4X-147433)
- Beclometasone Impurity 28 (CAS CATO-C4X-147428)
- Beclometasone Impurity 35 (CAS CATO-C4X-147435)
- Beclometasone Impurity 46 (CAS CATO-C4X-147446)
- Beclometasone Impurity 45 (CAS 34542-51-3)
- Beclometasone Impurity 47 (CAS CATO-C4X-147447)
- Beclometasone Impurity 44 (CAS 18769-20-5)
Recommended Standards
- Prednisolone Impurity 29 (CAS 106822-21-3)
- Reserpine Impurity 4 (CAS 1178-28-5)
- Adapalene EP Impurity B (CAS 1346599-76-5)
- Hydrocortisone Impurity 43 (CAS 7780-63-4)
- Irinotecan EP Impurity C (CAS 947687-02-7)
- Balsalazide Impurity 9 (CAS 1798395-96-6)
- Ibrutinib Impurity 26 (CAS CATO-C4X-106426)
- Maleic acid, ammonia salt (CAS 44742-89-4)
- (2,3-Dihydrobenzofuran-7-yl)boronic acid (CAS 685514-61-8)
- Citalopram Impurity 9 (CAS CATO-C4X-11099)
- Carbonic acid, ethyl 2-pyridinyl ester (CAS 7325-39-5)
- Methyl 3-amino-7-methyl-2,3-dihydro-1H-indene-5-carboxylate (CAS 1337209-54-7)
- 1-(3-Methoxyphenyl)cyclopentanecarbonitrile (CAS 74316-83-9)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
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