2-Methylpropane-2-sulfonyl chloride CAS 10490-22-9
| CAS No. | 10490-22-9 |
| Molecular Formula | C4H9ClO2S |
| Molecular Weight | 156.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Methylpropane-2-sulfonyl chloride (CAS 10490-22-9) is a high-purity analytical reference standard with the molecular formula C4H9ClO2S and a molecular weight of 156.63 g/mol.
2-Methylpropane-2-sulfonyl chloride (C4H9ClO2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H9ClO2S |
| Molecular Weight | 156.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methylpropane Standards
- 2-Methylpropane-1-sulfonyl fluoride (CAS 659-90-5)
- 2-Methylpropane-2-sulfonic acid (CAS 16794-13-1)
- 2-Methylpropane-1-sulfonic acid (CAS 16794-14-2)
- N-methylpropane-1-sulfonamide (CAS 25855-60-1)
- n-Methylpropane-2-sulfonamide (CAS 25855-59-8)
- Methyl 2-Methylpropane-2-sulfinate (CAS 52056-71-0)
- 2-(2-Methylpropane-2-sulfonyl)acetic acid (CAS 36610-02-3)
- 2-Methylpropane-1,2,3-tricarboxylic acid (CAS 1590-02-9)
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