2-Fluoro-6-hydroxybenzene-1-sulfonyl chloride CAS 1261862-81-0
| CAS No. | 1261862-81-0 |
| Molecular Formula | C6H4ClFO3S |
| Molecular Weight | 210.61 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.
2-Fluoro-6-hydroxybenzene-1-sulfonyl chloride (CAS 1261862-81-0), molecular formula C6H4ClFO3S and molecular weight 210.61 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H4ClFO3S, 2-Fluoro-6-hydroxybenzene-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.61 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.
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 | C6H4ClFO3S |
| Molecular Weight | 210.61 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, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- 3-Fluoro-4-hydroxybenzene-1-sulfonyl chloride (CAS 1026456-51-8)
- 3-fluoro-5-hydroxybenzene-1-sulfonyl chloride (CAS 1261441-64-8)
- 5-Fluoro-2-hydroxybenzene-1-sulfonyl chloride (CAS 1261454-22-1)
- 2-Fluoro-3-hydroxybenzene-1-sulfonyl chloride (CAS 1261621-06-0)
- 3-Fluoro-2-hydroxybenzene-1-sulfonyl chloride (CAS 1261649-13-1)
- 4-Fluoro-2-hydroxybenzene-1-sulfonyl chloride (CAS 1261674-76-3)
- 2-Fluoro-4-hydroxybenzene-1-sulfonyl chloride (CAS 1261827-40-0)
- 2-Fluoro-5-hydroxybenzene-1-sulfonyl chloride (CAS 1261837-43-7)
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