| CAS No. | 17372-00-8 |
| Molecular Formula | C11H6NO4S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 303.28 g/mol gives Sodium 2-thioxo-2,3-dihydronaphtho[2,3-d]oxazole-7-sulfonate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Sodium 2-thioxo-2,3-dihydronaphtho[2,3-d]oxazole-7-sulfonate (CAS 17372-00-8), molecular formula C11H6NO4S2Na and molecular weight 303.28 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Sodium 2-thioxo-2,3-dihydronaphtho[2,3-d]oxazole-7-sulfonate (C11H6NO4S2Na) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Sodium 2-thioxo-2,3-dihydronaphtho[2,3-d]oxazole-7-sulfonate 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 | C11H6NO4S2 Na |
| Molecular Weight | 303.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |