| CAS No. | 69815-95-8 |
| Molecular Formula | C5H5ClO3S |
| Molecular Weight | 180.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
CATO supplies 5-Methylfuran-2-sulfonyl chloride (CAS 69815-95-8), a certified reference material (molecular formula C5H5ClO3S, MW 180.61 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Methylfuran-2-sulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 180.61 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.
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.
| Molecular Formula | C5H5ClO3S |
| Molecular Weight | 180.61 g/mol |
| Purity | 97%+ |
| 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 | 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.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |