Rivastigmine Impurity 16 CAS CATO-C4X-138416
| CAS No. | CATO-C4X-138416 |
| Molecular Formula | C16H18N2O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 436.42 g/mol gives Rivastigmine Impurity 16 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Rivastigmine Impurity 16 (CAS CATO-C4X-138416, C16H18N2O3C4H6O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Rivastigmine Impurity 16 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 436.42 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Rivastigmine Impurity 16 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 | C16H18N2O3 C4H6O6 |
| Molecular Weight | 436.42 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Rivastigmine Standards
- Rivastigmine Impurity 10 (CAS 105601-04-5)
- rac-Rivastigmine (CAS 105601-20-5)
- Rivastigmine RC 5 (CAS 1070660-34-2)
- Rivastigmine Benzyl Impurity (CAS 1111083-50-1)
- Rivastigmine-d3 (CAS 1133229-21-6)
- Rivastigmine-d5 (CAS 1133229-22-7)
- Rivastigmine Impurity 26 (CAS 1213234-40-2)
- Rivastigmine EP Impurity B (CAS 1230021-28-9)
Recommended Standards
- Arotinolol Impurity 4 (CAS CATO-C4X-18544)
- Oseltamivir Impurity 254 (CAS CATO-C4X-1720254)
- Apalutamide Impurity 49 (CAS CATO-C4X-274949)
- 1,1'-BIs[(2S,4S)-2,4-bis(1-methylethyl)-1-phosphetanyl]ferrocene (CAS 224057-12-9)
- 2-(2-Bromoallyl)-5-methylthiophene (CAS 1378867-11-8)
- 2,3-Difluoro-1-nitro-4-propoxybenzene (CAS 1881293-81-7)
- 2-Amino-4-hydroxy-9-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-4,9-dihydro-1H-purine-6,8-dione (CAS 152785-98-3)
- 2-Amino-7-bromoisoquinolin-1(2H)-one (CAS 1935123-90-2)
- 1216475-83-0 Ethyl Isobutyrylacetate-d6 (CAS 1216475-83-0)
- Semaglutide impurity 203 (CAS CATO-C4X-2226203)
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