| CAS No. | 34948-79-3 |
| Molecular Formula | C27H22O7 |
| Molecular Weight | 458.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 458.46 g/mol gives (2R,3R,4R)-2-((benzoyloxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl dibenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (2R,3R,4R)-2-((benzoyloxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl dibenzoate (CAS 34948-79-3), a certified reference material (molecular formula C27H22O7, MW 458.46 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, (2R,3R,4R)-2-((benzoyloxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl dibenzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 458.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C27H22O7 |
| Molecular Weight | 458.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |