Ethoxysulfonyl Chloride CAS 625-01-4
| CAS No. | 625-01-4 |
| Molecular Formula | C2H5ClO3S |
| Molecular Weight | 144.58 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.
Ethoxysulfonyl Chloride (CAS 625-01-4) is a high-purity analytical reference standard with the molecular formula C2H5ClO3S and a molecular weight of 144.58 g/mol.
Owing to a sulfone group, a carboxylic acid group, an ether linkage, chlorine substitution, Ethoxysulfonyl Chloride is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 144.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C2H5ClO3S |
| Molecular Weight | 144.58 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethoxysulfonyl Standards
Recommended Standards
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