| CAS No. | 7299-29-8 |
| Molecular Formula | C19H22N2O |
| Molecular Weight | 294.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 294.39 g/mol gives (3a,9S)-3,9-epoxy-10,11-dihydrocinchonan distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(3a,9S)-3,9-epoxy-10,11-dihydrocinchonan (CAS 7299-29-8) is a high-purity analytical reference standard with the molecular formula C19H22N2O and a molecular weight of 294.39 g/mol.
The molecular framework of (3a,9S)-3,9-epoxy-10,11-dihydrocinchonan (C19H22N2O) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C19H22N2O |
| Molecular Weight | 294.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1959 |
| Nitrogen Atoms | 2 |