N-Nitroso Rivastigmine Hydrogen Tartrate EP Impurity E CAS 3079775-26-8
| CAS No. | 3079775-26-8 |
| Molecular Formula | C13H19N3O3 |
| Molecular Weight | 265.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies N-Nitroso Rivastigmine Hydrogen Tartrate EP Impurity E (CAS 3079775-26-8), a pharmacopoeial impurity reference standard (molecular formula C13H19N3O3, MW 265.31 g/mol) used for the identification and quantification of trace impurities in APIs.
N-Nitroso Rivastigmine Hydrogen Tartrate EP Impurity E (C13H19N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), N-Nitroso Rivastigmine Hydrogen Tartrate EP Impurity E 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 | C13H19N3O3 |
| Molecular Weight | 265.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2005 |
| Nitrogen Atoms | 3 |
Related N Standards
- 4-Nitroso-1,3-diphenyl-1h-pyrazol-5-amine (CAS 90012-56-9)
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Recommended Standards
- Ramosetron impurity 29 (CAS CATO-C4X-118229)
- Rivastigmine impurity 32 (CAS CATO-C4X-138432)
- Ramosetron Impurity 28 (CAS CATO-C4X-118228)
- Rivastigmine impurity 35 (CAS CATO-C4X-138435)
- Vericiguat Impurity 13 (CAS CATO-C4X-289613)
- Polydatin Impurity 1 (CAS 3009113-18-9)
- Cefmetazole Impurity 26 (CAS CATO-C4X-150726)
- [(4-chlorophenyl)(pyridin-3-yl)methyl](ethyl)amine (CAS 1153125-91-7)
- Pyrido[1,2-a]benzimidazole-4-carbonitrile, 1-chloro-3-methyl- (CAS 121105-78-0)
- Bis[(6-methylpyridin-2-yl)methyl]amine (CAS 25599-07-9)
- 2-Chloro-5-fluoro-3-(trifluoromethyl)benzyl alcohol (CAS 2056110-51-9)
- N-Boc-3-hydroxy-1,2,3,6-tetrahydropyridine (CAS 224779-27-5)
- 3-Nitro-1-[(oxolan-2-yl)methyl]-1h-pyrazole (CAS 1006523-17-6)
- Serpent Peptide (CAS 823202-99-9)
Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com