(3R,4R,5R)-3,4,5-tris(Benzyloxy)tetrahydro-2H-pyran-2-ol CAS 20787-21-7
| CAS No. | 20787-21-7 |
| Molecular Formula | C26H28O5 |
| Molecular Weight | 420.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C26H28O5, (3R,4R,5R)-3,4,5-tris(Benzyloxy)tetrahydro-2H-pyran-2-ol contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.50 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).
(3R,4R,5R)-3,4,5-tris(Benzyloxy)tetrahydro-2H-pyran-2-ol (CAS 20787-21-7), molecular formula C26H28O5 and molecular weight 420.50 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures (3R,4R,5R)-3,4,5-tris(Benzyloxy)tetrahydro-2H-pyran-2-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C26H28O5 |
| Molecular Weight | 420.50 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Recommended Standards
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