Rivastigmine Impurity 42 CAS CATO-C4X-138442
| CAS No. | CATO-C4X-138442 |
| Molecular Formula | C10H16O4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
As a process- or degradation-related impurity, Rivastigmine Impurity 42 (CAS CATO-C4X-138442, C10H16O4SC10H15NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Rivastigmine Impurity 42 (C10H16O4SC10H15NO) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Rivastigmine Impurity 42 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H16O4S C10H15NO |
| Molecular Weight | 397.53 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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
- Avanafil Impurity 144 (CAS CATO-C4X-1118144)
- Bromhexine Impurity 18 (CAS CATO-C4X-106018)
- Flubendazole EP Impurity A (CAS CATO-C4X-24384)
- Cloxacillin Impurity 25 (CAS CATO-C4X-159725)
- 5-((Azetidin-3-yloxy)methyl)-3-cyclopropyl-1,2,4-oxadiazole (CAS 1339154-25-4)
- Methyl 3H-thieno[2,3-d]imidazole-5-carboxylate (CAS 2110388-02-6)
- 3-Acetamido-3-(4-fluorophenyl)propanoicacid (CAS 332052-58-1)
- 2-((3,4-Dichlorobenzyl)oxy)benzoic acid (CAS 149894-43-9)
- ethyl[(4-fluorophenyl)(phenyl)methyl]amine (CAS 1019384-92-9)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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