(2R,3R,4S)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate CAS 6586-65-8
| CAS No. | 6586-65-8 |
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C19H17NO5, (2R,3R,4S)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 339.34 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).
(2R,3R,4S)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate (CAS 6586-65-8), molecular formula C19H17NO5 and molecular weight 339.34 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (2R,3R,4S)-2-(Acetoxymethyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate 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.
Physical & Chemical Properties
| Molecular Formula | C19H17NO5 |
| Molecular Weight | 339.34 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Recommended Standards
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