Ethyl 4-(chlorosulfonyl)-2,5-dimethylfuran-3-carboxylate CAS 306936-32-3
| CAS No. | 306936-32-3 |
| Molecular Formula | C9H11ClO5S |
| Molecular Weight | 266.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 4-(chlorosulfonyl)-2,5-dimethylfuran-3-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.70 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.
Ethyl 4-(chlorosulfonyl)-2,5-dimethylfuran-3-carboxylate (CAS 306936-32-3) is a high-purity analytical reference standard with the molecular formula C9H11ClO5S and a molecular weight of 266.70 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4-(chlorosulfonyl)-2,5-dimethylfuran-3-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H11ClO5S |
| Molecular Weight | 266.70 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 |
| 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.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- Methyl 5-(chlorosulfonyl)-1-isopropyl-1h-pyrazole-3-carboxylate (CAS 1260658-86-3)
- ethyl 4-(chlorosulfonyl)-3-fluorobenzoate (CAS 1063734-43-9)
- Ethyl 3-(chlorosulfonyl)-5-fluorobenzoate (CAS 1154154-93-4)
- Methyl 3-(chlorosulfonyl)-5-fluoro-4-methylbenzoate (CAS 1155083-93-4)
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Recommended Standards
- Dibenzofuran-3-sulfonyl Chloride (CAS 42138-14-7)
- Crizotinib Impurity 69 (CAS CATO-C4X-102569)
- Dibenzo[b,d]furan-2-sulfonyl chloride (CAS 23602-98-4)
- Crizotinib Impurity 71 (CAS CATO-C4X-102571)
- 1,1'-Iminobis-Butanol (CAS 112316-23-1)
- 2-BRomo-3-methoxy-1,1,1-trifluoropropane (CAS 883498-92-8)
- (R)-N-Methyl-1-(5-(trifluoromethyl)pyrazin-2-yl)ethan-1-amine (CAS 2774613-10-2)
- 2-(3-Cyanopropoxy)benzonitrile (CAS 194724-60-2)
- Formoterol Impurity 71 (CAS 71250-20-9)
- 1-[4-(chloromethyl)phenyl]-1H-1,2,4-triazole (CAS 143426-53-3)
- (S)-2-(3-Fluorophenyl)pyrrolidine hydrochloride (CAS 1360442-16-5)
- ((4-Hydroxybutyl)azanediyl)bis(hexane-6,1-diyl) bis(2-hexyldecanoate) (CAS 2036272-55-4)
- 2-Methyl-3-(trifluoromethoxy)benzenesulfonamide (CAS 1261650-79-6)
- ([D2]Gly4)-Cholecystokinin Octapeptide (sulfated) ammonium salt (CAS 1926163-74-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com