| CAS No. | 17773-41-0 |
| Molecular Formula | C5H9NOS |
| Molecular Weight | 131.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 131.20 g/mol gives Hydantoin Impurity 6 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Hydantoin Impurity 6 (CAS 17773-41-0) is a certified pharmaceutical impurity reference standard with the molecular formula C5H9NOS and a molecular weight of 131.20 g/mol.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, Hydantoin Impurity 6 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 131.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Hydantoin Impurity 6 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.
| Molecular Formula | C5H9NOS |
| Molecular Weight | 131.20 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |