5-(3-Methylisoxazol-5-yl)furan-2-sulfonyl chloride CAS 1060817-75-5
| CAS No. | 1060817-75-5 |
| Molecular Formula | C8H6ClNO4S |
| Molecular Weight | 247.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(3-Methylisoxazol-5-yl)furan-2-sulfonyl chloride (CAS 1060817-75-5) is a high-purity analytical reference standard with the molecular formula C8H6ClNO4S and a molecular weight of 247.66 g/mol.
The molecular framework of 5-(3-Methylisoxazol-5-yl)furan-2-sulfonyl chloride (C8H6ClNO4S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-(3-Methylisoxazol-5-yl)furan-2-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 | C8H6ClNO4S |
| Molecular Weight | 247.66 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.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylisoxazol Standards
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Recommended Standards
- 3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-5-sulfonyl chloride (CAS 1049652-25-6)
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- 3-(Pentan-3-ylamino)benzonitrile (CAS 1021100-29-7)
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- (Z)-[(2-Chlorophenyl)methyl](oxido)(phenylmethylidene)azanium (CAS 55606-36-5)
- 2-Butene (CAS 107-01-7)
- 2-Methoxynicotinohydrazide (CAS 89853-72-5)
- 5-Chloro-2-pyridinecarbonyl chloride (CAS 128073-03-0)
- 4-Pyridylmethylhydrazine (CAS 7112-39-2)
- Ethyl 2-(4-chloro-2-fluorophenoxy)acetate (CAS 1716-87-6)
- 2-(4-Ethylpiperazin-1-yl)pyridin-4-amine (CAS 892867-11-7)
- Semaglutide impurity 69 (CAS CATO-C4X-222669)
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