4,5-dichloro-2-fluorobenzene-1-sulfonyl chloride CAS 13656-52-5
| CAS No. | 13656-52-5 |
| Molecular Formula | C6H8Cl3FO2S |
| Molecular Weight | 269.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-dichloro-2-fluorobenzene-1-sulfonyl chloride is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4,5-dichloro-2-fluorobenzene-1-sulfonyl chloride (CAS 13656-52-5), a certified reference material (molecular formula C6H8Cl3FO2S, MW 269.55 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H8Cl3FO2S, 4,5-dichloro-2-fluorobenzene-1-sulfonyl chloride contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 269.55 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.
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), 4,5-dichloro-2-fluorobenzene-1-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 | C6H8Cl3FO2S |
| Molecular Weight | 269.55 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-BROMO-3-METHYLBENZENE-1-SULFONYL CHLORIDE 4-BROMO-3-METHYLBENZENESULFONYL CHLORIDE 4-BROMO-3-METHYLBENZENESULPHONYL CHLORIDE 6-BROMO-M-TOLUENE-3-SULFONYL CHLORIDE 6-BROMOTOLUENE-3-SULFONYL CHLORIDE 72256-93-0 BC004040 (CAS 72256-93-0)
- 5-bromo-4-chloro-6-methoxy-2-(methylthio)pyrimidine (CAS 1934443-37-4)
- Ethyl 2-bromo-5-chlorothiophene-3-carboxylate (CAS 2091165-96-5)
- 4-(2,4,6-Trichlorophenoxy)butan-1-ol (CAS 219313-00-5)
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- 4-Nitrophenyl 4-guanidinobenzoate hydrochloride (CAS 19135-17-2)
- 1,2-Dibromo-2,4-Dicyanobutane (CAS 35691-65-7)
- 2-(4-Chloro-6-(methylthio)-1H-pyrazolo-[3,4-d]pyrimidin-1-yl)ethanol (CAS 1220517-89-4)
- 4-Methyl-5-(thiophen-3-ylmethyl)-4H-1,2,4-triazole-3-thiol (CAS 262610-50-4)
- 6-(Aminomethyl)nicotinonitrile (CAS 782428-98-2)
- 2-(Carboxymethylthio)-Ethyl Ether (CAS 4408-66-6)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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