Beclometasone Dipropionate Monohydrate EP Impurity U CAS 79578-39-5
| CAS No. | 79578-39-5 |
| Molecular Formula | C25H32O6 |
| Molecular Weight | 428.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C25H32O6, Beclometasone Dipropionate Monohydrate EP Impurity U contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 428.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Beclometasone Dipropionate Monohydrate EP Impurity U (CAS 79578-39-5), a pharmacopoeial impurity reference standard (molecular formula C25H32O6, MW 428.52 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Beclometasone Dipropionate Monohydrate EP Impurity U 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 | 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.) | 1979 |
Related Beclometasone Standards
- Beclometasone Dipropionate Monohydrate EP Impurity V (CAS 205105-83-5)
- 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
- Reserpine Impurity 4 (CAS 1178-28-5)
- Hydrocortisone Impurity 43 (CAS 7780-63-4)
- Prednisolone Impurity 29 (CAS 106822-21-3)
- Hydrocortisone Impurity 28 (CAS CATO-C4X-140128)
- Estradiol Impurity 55 (CAS CATO-C4X-163655)
- Edaravone Impurity 52 (CAS CATO-C4X-106252)
- Tadalafil Impurity 14 (CAS 7524-52-9)
- 5-[3-(Thiophen-2-yl)-6-(trifluoromethyl)thieno[3,2-b]pyridin-2-yl]-4H-1,2,4-triazole-3-thiol (CAS 478066-08-9)
- 2-Morpholin-4-yl-2-(3-(trifluoromethyl)phenyl)-ethanamine (CAS 933739-54-9)
- 2-[4-(Benzyloxy)phenyl]-2-propanol (CAS 94571-13-8)
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- Thioctic Acid Impurity 12 (CAS 916746-61-7)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
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