| CAS No. | 608-89-9(free base) |
| Molecular Formula | C6H9O6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
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.
Varenicline Impurity 39 Sodium Salt (CAS 608-89-9(free base)) is a certified pharmaceutical impurity reference standard with the molecular formula C6H9O6Na and a molecular weight of 200.12 g/mol.
Owing to a carbohydrate-derived structure, Varenicline Impurity 39 Sodium Salt is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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.
| Molecular Formula | C6H9O6 Na |
| Molecular Weight | 200.12 g/mol |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |