| CAS No. | 77125-87-2 |
| Molecular Formula | C15H9O6S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 358.30 g/mol gives Sodium Flavonol-2'-sulfonate Hydrate [for Determination of Sn, Zr] distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Sodium Flavonol-2'-sulfonate Hydrate [for Determination of Sn, Zr] (CAS 77125-87-2), a certified reference material (molecular formula C15H9O6SNaH2O, MW 358.30 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H9O6SNaH2O, Sodium Flavonol-2'-sulfonate Hydrate [for Determination of Sn, Zr] contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 358.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C15H9O6S Na H2O |
| Molecular Weight | 358.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Sulfur Atoms | 1 |