FCN437 Impurity 2 CAS CATO-C4X-33242
| CAS No. | CATO-C4X-33242 |
| Molecular Formula | C18H21NO5S |
| Molecular Weight | 363.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures FCN437 Impurity 2 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.
As a process- or degradation-related impurity, FCN437 Impurity 2 (CAS CATO-C4X-33242, C18H21NO5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of FCN437 Impurity 2 (C18H21NO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C18H21NO5S |
| Molecular Weight | 363.43 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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- Amiodarone EP Impurity E (CAS 52490-15-0)
- Cefoxitin Impurity 52 (CAS CATO-C4X-157852)
- Lornoxicam Impurity 109 (CAS CATO-C4X-2016109)
- 1-(azetidin-3-yl)-1H-1,2,4-triazole dihydrochloride (CAS 1251925-09-3)
- (R)-1-phenyl-3-(pyrrolidin-1-yl)propan-2-amine dihydrochloride (CAS 368442-91-5)
- 3-Hydroxy-5-(methylthio)benzonitrile (CAS 1243371-55-2)
- 4,4＇-Thiobis(6-tert-butyl-m-cresol) (CAS 96-69-5)
- Pranoprofen Impurity 26 (CAS 86618-09-9)
- dimethyl 2-(5-bromo-2-nitrophenyl)malonate (CAS 1417407-96-5)
- Eosinophilotactic Peptide (CAS 61756-28-3)
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