(4Z)-4-Deoxy-4-[2-(1,1-dimethylethoxy)-2-oxoethylidene]-2,3-O-(1-methylethylidene)-β-L-erythro-pentopyranoside Methyl Ether CAS 131149-12-7
| CAS No. | 131149-12-7 |
| Molecular Formula | C15H24O6 |
| Molecular Weight | 300.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4Z)-4-Deoxy-4-[2-(1,1-dimethylethoxy)-2-oxoethylidene]-2,3-O-(1-methylethylidene)-β-L-erythro-pentopyranoside Methyl Ether (CAS 131149-12-7) is a high-purity analytical reference standard with the molecular formula C15H24O6 and a molecular weight of 300.35 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, (4Z)-4-Deoxy-4-[2-(1,1-dimethylethoxy)-2-oxoethylidene]-2,3-O-(1-methylethylidene)-β-L-erythro-pentopyranoside Methyl Ether is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 300.35 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).
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 | C15H24O6 |
| Molecular Weight | 300.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
Related Z Standards
- (4E)-4-Deoxy-4-[2-(1,1-dimethylethoxy)-2-oxoethylidene]-2,3-O-(1-methylethylidene)-β-L-erythropentopyranoside Methyl Ether (CAS 131149-13-8)
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Recommended Standards
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