FCN437 Impurity 5 CAS CATO-C4X-33245
| CAS No. | CATO-C4X-33245 |
| Molecular Formula | C14H19NO4S |
| Molecular Weight | 297.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
FCN437 Impurity 5 (CAS CATO-C4X-33245) is a certified pharmaceutical impurity reference standard with the molecular formula C14H19NO4S and a molecular weight of 297.37 g/mol.
Structurally, FCN437 Impurity 5 (C14H19NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 297.37 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures FCN437 Impurity 5 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 | C14H19NO4S |
| Molecular Weight | 297.37 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- FCN437 Impurity 4 (CAS CATO-C4X-33244)
- 1-(5-((Cyanomethyl)thio)-1,3,4-thiadiazol-2-yl)-3-(thiophen-2-yl)urea (CAS 1001830-53-0)
- Leucogen Impurity 6 (CAS CATO-C4X-28896)
- 5-(3-Ethoxy-1-ethyl-1h-pyrazol-4-yl)-4-(2-methoxyethyl)-4h-1,2,4-triazole-3-thiol (CAS 1170389-76-0)
- Flurbiprofen Impurity 98 (CAS CATO-C4X-144498)
- Pramipexole Impurity 41 (CAS 104617-50-7)
- Verteporfin Impurity 5 (CAS CATO-C4X-35495)
- 2-Methylphenyl 2-acetamido-2-deoxy-β-D-glucopyranoside (CAS 263746-45-8)
- 2-(Phenyl(o-tolyl)methoxy)acetic acid (CAS 20263-93-8)
- Mycophenolate Mofetil EP Impurity D HCl (CAS 1322681-37-7（free base）)
- 3-Fluoro-4-(pyridin-3-yl)aniline (CAS 1214357-04-6)
- 5-Bromo-1,2-dichloro-3-(trifluoromethyl)benzene (CAS 392-89-2)
- 2-Oxo-5-(trifluoromethyl)-1,2-dihydropyridine-3-carboxylic acid (CAS 787640-16-8)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
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