| CAS No. | CATO-C4X-100693 |
| Molecular Formula | C6H10O3 |
| Molecular Weight | 130.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Afatinib Impurity 93 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 130.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
As a process- or degradation-related impurity, Afatinib Impurity 93 (CAS CATO-C4X-100693, C6H10O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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.
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.
| Molecular Formula | C6H10O3 |
| Molecular Weight | 130.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |