(3-Oxo-2,8-dioxaspiro[4.5]decan-1-yl)methanesulfonyl chloride CAS 2138218-68-3
| CAS No. | 2138218-68-3 |
| Molecular Formula | C9H13ClO5S |
| Molecular Weight | 268.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C9H13ClO5S, (3-Oxo-2,8-dioxaspiro[4.5]decan-1-yl)methanesulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 268.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
(3-Oxo-2,8-dioxaspiro[4.5]decan-1-yl)methanesulfonyl chloride (CAS 2138218-68-3) is a high-purity analytical reference standard with the molecular formula C9H13ClO5S and a molecular weight of 268.71 g/mol.
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 | C9H13ClO5S |
| Molecular Weight | 268.71 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Oxo Standards
- {2,9-dioxaspiro[5.5]undecan-3-yl}methanesulfonyl chloride (CAS 2091749-03-8)
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