| CAS No. | 473451-73-9 |
| Molecular Formula | C19H20O6 |
| Molecular Weight | 344.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 344.36 g/mol gives (1S,10R,11S,12S)-3,10,11,12,17-Oentahydroxytricyclo[12.3.1.12,6]nonadeca-1(18),2,4,6(19),14,16-hexaen-9-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(1S,10R,11S,12S)-3,10,11,12,17-Oentahydroxytricyclo[12.3.1.12,6]nonadeca-1(18),2,4,6(19),14,16-hexaen-9-one (CAS 473451-73-9) is a high-purity analytical reference standard with the molecular formula C19H20O6 and a molecular weight of 344.36 g/mol.
Based on its molecular formula C19H20O6, (1S,10R,11S,12S)-3,10,11,12,17-Oentahydroxytricyclo[12.3.1.12,6]nonadeca-1(18),2,4,6(19),14,16-hexaen-9-one contains a flavonoid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C19H20O6 |
| Molecular Weight | 344.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |