1,2:5,6-Di-O-isopropylidene-3-O-p-toluenesulfonyl-α-D-allofuranose CAS 13964-21-1
| CAS No. | 13964-21-1 |
| Molecular Formula | C20H28O7S |
| Molecular Weight | 412.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1,2:5,6-Di-O-isopropylidene-3-O-p-toluenesulfonyl-α-D-allofuranose (CAS 13964-21-1), a certified reference material (molecular formula C20H28O7S, MW 412.50 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H28O7S, 1,2:5,6-Di-O-isopropylidene-3-O-p-toluenesulfonyl-α-D-allofuranose contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 412.50 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).
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 | C20H28O7S |
| Molecular Weight | 412.50 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
| Sulfur Atoms | 1 |
Recommended Standards
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