Dequalinium impurity 22 CAS CATO-C4X-193622
| CAS No. | CATO-C4X-193622 |
| Molecular Formula | C27H37N2O |
| Molecular Weight | 405.60 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Dequalinium impurity 22.
Dequalinium impurity 22 (CAS CATO-C4X-193622) is a certified pharmaceutical impurity reference standard with the molecular formula C27H37N2O and a molecular weight of 405.60 g/mol.
The molecular framework of Dequalinium impurity 22 (C27H37N2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 Dequalinium impurity 22 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 | C27H37N2O |
| Molecular Weight | 405.60 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dequalinium Standards
- Dequalinium Impurity 4 (CAS 16355-92-3)
- Dequalinium Impurity 16 (CAS CATO-C4X-193616)
- Dequalinium Impurity 7 (CAS 19056-26-9)
- Dequalinium impurity 34 (CAS CATO-C4X-193634)
- Dequalinium impurity 27 (CAS CATO-C4X-193627)
- Dequalinium impurity 18 (CAS 2377370-96-0)
- Dequalinium Impurity 10 (CAS CATO-C4X-193610)
- Dequalinium Chloride (CAS 522-51-0)
Recommended Standards
- 3-Bromo-8-chloro-2-(4-methoxyphenyl)-6-(trifluoromethyl)imidazo[1,2-a]pyridine (CAS 866137-67-9)
- Hydrolyzed Fumonisin B2 (CAS 147985-10-2)
- 2,4,6-Trichlorophenyl 2-(trifluoromethyl)-benzenesulfonate (CAS 1171919-40-6)
- PDP-EA (CAS 861891-72-7)
- Salbutamol Impurity 61 (CAS 238762-34-0)
- Vibegron Impurity 9 (CAS CATO-C4X-23769)
- Agomelatine Impurity 13 (CAS 138113-09-4)
- (3R,4R)-tert-butyl 3-(dimethylamino)-4-hydroxypyrrolidine-1-carboxylate (CAS 960289-56-9)
- Progesterone Impurity 80 (CAS CATO-C4X-150280)
- 3-(3,5-Dichlorophenyl)-1-pentanoylimidazolidine-2,4-dione (CAS 90815-17-1)
- 5-((Ethylthio)methyl)-5-(4-methoxyphenyl)imidazolidine-2,4-dione (CAS 6944-95-2)
- 7-Fluoro-5-hydroxyindolin-2-one (CAS 1448460-10-3)
- D-Ritalinic Acid (CAS 129389-67-9)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
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