Methyl (R)-2-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2-(tosyloxy)acetate CAS 166249-17-8
| CAS No. | 166249-17-8 |
| Molecular Formula | C15H20O7S |
| Molecular Weight | 344.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl (R)-2-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2-(tosyloxy)acetate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl (R)-2-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2-(tosyloxy)acetate (CAS 166249-17-8) is a high-purity analytical reference standard with the molecular formula C15H20O7S and a molecular weight of 344.38 g/mol.
Structurally, Methyl (R)-2-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2-(tosyloxy)acetate (C15H20O7S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 344.38 g/mol, it falls into the moderately-high-molecular-weight range. 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).
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.
As a certified reference material (CRM), Methyl (R)-2-((S)-2,2-dimethyl-1,3-dioxolan-4-yl)-2-(tosyloxy)acetate 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 | C15H20O7S |
| Molecular Weight | 344.38 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Sulfur Atoms | 1 |
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