Fluphenazine EP Impurity B CAS 1476-79-5
| CAS No. | 1476-79-5 |
| Molecular Formula | C22H26F3N3O3S |
| Molecular Weight | 469.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Fluphenazine EP Impurity B (CAS 1476-79-5), a pharmacopoeial impurity reference standard (molecular formula C22H26F3N3O3S, MW 469.52 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Fluphenazine EP Impurity B (C22H26F3N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. 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 469.52 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 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.
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 | C22H26F3N3O3S |
| Molecular Weight | 469.52 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Fluphenazine Standards
- Fluphenazine Mono N-Oxide (CAS 30897-25-7)
- Fluphenazine Decanoate EP Impurity A (CAS 1674-76-6)
- Fluphenazine-d8 (CAS 1323633-98-2)
- Fluphenazine Decanoate EP Impurity B (CAS 69-23-8)
- Fluphenazine Enanthate (CAS 2746-81-8)
- Fluphenazine Decanoate EP Impurity D (CAS 97671-70-0)
- Fluphenazine Decanoate EP Impurity E (CAS CATO-C4X-12314)
- Fluphenazine Impurity 7 (CAS 1675-46-3)
Recommended Standards
- 7-ACCA Impurity 9 (CAS CATO-C4X-23139)
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- Roxadustat Impurity 46 (CAS CATO-C4X-221346)
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- 6-(4-(Pyrrolidin-1-ylsulfonyl)phenyl)nicotinic acid (CAS 1261892-55-0)
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- 2-(Difluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid (CAS 1804839-94-8)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com