Rivastigmine EP Impurity A CAS 139306-10-8
| CAS No. | 139306-10-8 |
| Molecular Formula | C10H15NO |
| Molecular Weight | 165.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Rivastigmine EP Impurity A (C10H15NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 165.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Rivastigmine EP Impurity A (CAS 139306-10-8), a pharmacopoeial impurity reference standard (molecular formula C10H15NO, MW 165.23 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Rivastigmine EP Impurity A 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 | C10H15NO |
| Molecular Weight | 165.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related Rivastigmine Standards
- Rivastigmine Impurity 10 (CAS 105601-04-5)
- Rivastigmine Impurity 45 (CAS 26050-44-2)
- Rivastigmine RC 6 (CAS 851086-95-8)
- Rivastigmine Impurity N3 (CAS 90271-37-7)
- Rivastigmine Impurity N4 (CAS 58114-05-9)
- Rivastigmine Impurity N13 (CAS 2454-35-5)
- Rivastigmine EP Impurity G (CAS 23308-82-9)
- Rivastigmine Impurity 25 (CAS 18840-47-6)
Recommended Standards
- Ranitidine Impurity 24 (CAS 13623-94-4)
- Fluoxetine Impurity 37 (CAS 101-98-4)
- Fluoxetine EP Impurity A (CAS 42142-52-9)
- Dapoxetine Impurity 98 (CAS CATO-C4X-143998)
- Brexpiprazole impurity 105 (CAS CATO-C4X-1131105)
- Torasemide Impurity 19 (CAS CATO-C4X-183619)
- Linagliptin Impurity 14 (CAS 666816-91-7)
- 6-Bromo-4,4,7-trimethyl-3,4-dihydroquinolin-2(1H)-one (CAS 203856-44-4)
- 2-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazine-1-carbonyl)cyclopropane-1-carboxylic acid (CAS 1023559-02-5)
- N-(2-chloroethyl)cyclopropanecarboxamide (CAS 53487-37-9)
- 3-Amino-N-ethyl-4-methylbenzenesulfonamide (CAS 1017477-17-6)
- 2-(3,4-Dimethylphenyl)propan-2-ol (CAS 40180-49-2)
- Benzyl 2-Acetamido-2-deoxy-4,6-O-benzylidene-3-O-(2,3,4,6-tetra- O-acetyl-β-D-galactopyranosyl)-α-D-galactopyranoside (CAS 86327-84-6)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
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