(2r,3s,4r,5r,6s)-5-Acetamido-2-(acetoxymethyl)-6-(benzyloxy)tetrahydro-2h-pyran-3,4-diyl diacetate CAS 13318-46-2
| CAS No. | 13318-46-2 |
| Molecular Formula | C21H27NO9 |
| Molecular Weight | 437.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(2r,3s,4r,5r,6s)-5-Acetamido-2-(acetoxymethyl)-6-(benzyloxy)tetrahydro-2h-pyran-3,4-diyl diacetate (CAS 13318-46-2), molecular formula C21H27NO9 and molecular weight 437.44 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2r,3s,4r,5r,6s)-5-Acetamido-2-(acetoxymethyl)-6-(benzyloxy)tetrahydro-2h-pyran-3,4-diyl diacetate (C21H27NO9) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C21H27NO9 |
| Molecular Weight | 437.44 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-4-(2,3-difluorophenyl)butanoic acid (CAS 1260618-73-2)
- (2R,3S,4R,5R,6R)-5-acetamido-2-(acetoxymethyl)-6-(benzyloxy)tetrahydro-2H-pyran-3,4-diyl diacetate (CAS 13343-66-3)
- Fmoc-2,5-difluoro-L-homophenylalanine (CAS 1260616-15-6)
- Elenbecestat (CAS 1388651-30-6)
- 5-(4-Iodophenyl)-5H-[1,3]dithiolo[4,5-c]pyrrole-2-thione (CAS 923275-89-2)
- 5,7-Dihydroxy-4-oxo-4H-chromene-2-carboxylic acid (CAS 35811-69-9)
- 3-(2,2,2-Trifluoroethyl)-4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine (CAS 1393563-34-2)
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- 2-fluoro-6-(trifluoromethoxy)phenol (CAS 942618-24-8)
- (2-(2-(Dimethylamino)ethyl)phenyl)boronic acid (CAS 950739-33-0)
- Des-[Gly]31-Semaglutide (CAS CATO-C4X-2226156)
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