Sodium Fusidate EP Impurity K CAS 4701-54-6
| CAS No. | 4701-54-6 |
| Molecular Formula | C29H44O4 |
| Molecular Weight | 456.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Sodium Fusidate EP Impurity K (CAS 4701-54-6, C29H44O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, a hydroxyl group, an ether linkage, Sodium Fusidate EP Impurity K is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 456.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures Sodium Fusidate EP Impurity K 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 | C29H44O4 |
| Molecular Weight | 456.66 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Sodium Standards
- Sodium Fusidate EP Impurity J (CAS 13011-12-6)
- Sodium Fusidate EP Impurity O (CAS 13090-91-0)
- Sodium Fusidate Impurity 22 (CAS CATO-C4X-119722)
- Sodium Fusidate EP Impurity O (CAS CATO-C4X-119716)
- Sodium Fusidate EP Impurity I (CAS 5951-83-7)
- Sodium Fusidate EP Impurity L (CAS 74048-41-2)
- Sodium Fusidate Impurity 21 (CAS CATO-C4X-119721)
- Sodium Fusidate EP Impurity M (CAS 1013937-16-0)
Recommended Standards
- 1,1'-(decane-1,10-diyl)bis(4-amino-2-methylquinolin-1-ium) (CAS 6707-58-0)
- Triethyl furan-2,3,4-tricarboxylate (CAS 7251-41-4)
- Vortioxetine Impurity 58 (CAS CATO-C4X-105658)
- Trenizine (CAS 82190-93-0)
- Aspoxicillin Impurity 1 (CAS CATO-C4X-23191)
- Famciclovir Impurity 23 (CAS CATO-C4X-164223)
- Atrasentan Impurity 131 (CAS 1058349-04-4)
- 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (2-methyl-5-(piperidin-1-yl)furan-3-yl)boronate (CAS 2223042-98-4)
- (R)-3-((tert-butoxycarbonyl)amino)-2-(2,3-dimethoxybenzyl)propanoic acid (CAS 1260608-43-2)
- 4-[(2,4-Dimethylphenyl)methyl]-2-methyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 866157-84-8)
- Bexarotene Impurity 4 (CAS CATO-C4X-29494)
- 4-Chloro-2-(difluoromethoxy)-2'-(trifluoromethoxy)-1,1'-biphenyl (CAS 1261777-55-2)
- 5-Propyl-[1,3]dithiolo[4,5-d][1,3]dithiole-2-thione (CAS 202126-48-5)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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