Benzofuran-4-sulfonyl chloride CAS 479028-64-3
| CAS No. | 479028-64-3 |
| Molecular Formula | C8H5ClO3S |
| Molecular Weight | 216.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Benzofuran-4-sulfonyl chloride (C8H5ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Benzofuran-4-sulfonyl chloride (CAS 479028-64-3), molecular formula C8H5ClO3S and molecular weight 216.64 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Benzofuran-4-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H5ClO3S |
| Molecular Weight | 216.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Benzofuran Standards
- 1-Benzofuran-3-sulfonyl chloride (CAS 1051942-46-1)
- 1-Benzofuran-7-sulfonyl chloride (CAS 1191030-88-2)
- BENZOFURAN-6-SULFONYL CHLORIDE (CAS 1314920-96-1)
- 1-Benzofuran-2-sulfonyl chloride (CAS 17070-58-5)
- Benzofuran-5-sulfonyl chloride (CAS 869885-60-9)
- 1-Benzofuran-7-yl-3-methyl-piperazine (CAS 1446488-00-1)
- 1-(1-Benzofuran-5-yl)hexan-1-one (CAS 1951439-58-9)
- 4-(Benzofuran-2-yl)thiazol-2-amine (CAS 3084-04-6)
Recommended Standards
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- 4-(2-Chloro-6-fluorophenyl)butanoic acid (CAS 899350-34-6)
- 4-Methylhexanoic Acid (CAS 1561-11-1)
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- 3-(Pyridin-3-yloxy)phthalic acid (CAS 1381801-67-7)
- 6-Chloro-2-(pyridin-2-yl)pyrimidin-4-amine (CAS 1014720-73-0)
- 4-Ethoxy-2-methylbenzo[d]oxazole (CAS 1345515-04-9)
- 4-(Difluoromethyl)-6-(trifluoromethyl)nicotinoyl chloride (CAS 1805233-51-5)
- tert-Butyl (S)-3-(4-ethylphenyl)piperazine-1-carboxylate (CAS 1228561-63-4)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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