Huperzine A Impurity 2 CAS CATO-C4X-31232
| CAS No. | CATO-C4X-31232 |
| Molecular Formula | C15H18N2O2 |
| Molecular Weight | 258.32 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.
Huperzine A Impurity 2 (CAS CATO-C4X-31232) is a certified pharmaceutical impurity reference standard with the molecular formula C15H18N2O2 and a molecular weight of 258.32 g/mol.
Huperzine A Impurity 2 (C15H18N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H18N2O2 |
| Molecular Weight | 258.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Huperzine Standards
- Huperzine A Impurity 8 (CAS CATO-C4X-31238)
- Huperzine A Impurity 1 (CAS CATO-C4X-31231)
- Huperzine A Impurity 6 (CAS CATO-C4X-31236)
- Huperzine B (CAS 103548-82-9)
- Huperzine A Impurity 3 (CAS CATO-C4X-31233)
- Huperzine A Impurity 10 (CAS CATO-C4X-312310)
- (±)-Huperzine A (CAS 120786-18-7)
- (+)-Huperzine A (CAS 130791-77-4)
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