[3-(4-fluorophenyl)isoxazol-5-yl]methanesulfonyl chloride CAS 1087792-33-3
| CAS No. | 1087792-33-3 |
| Molecular Formula | C10H7ClFNO3S |
| Molecular Weight | 275.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
[3-(4-fluorophenyl)isoxazol-5-yl]methanesulfonyl chloride (C10H7ClFNO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies [3-(4-fluorophenyl)isoxazol-5-yl]methanesulfonyl chloride (CAS 1087792-33-3), a certified reference material (molecular formula C10H7ClFNO3S, MW 275.68 g/mol) for analytical method development and quality control.
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), [3-(4-fluorophenyl)isoxazol-5-yl]methanesulfonyl 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 | C10H7ClFNO3S |
| Molecular Weight | 275.68 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Isodecyl isotridecyl phthalate Solution (CAS 85168-77-0)
- 4-(2-(4-Bromo-2-chlorophenoxy)ethyl)morpholine (CAS 435285-43-1)
- 2-(3-(Benzyloxy)-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377606-95-4)
- Adamantane Impurity 6 (CAS 121768-37-4)
- 4-(1-Aminoethyl)hepta-1,6-dien-4-ol (CAS 315248-78-3)
- Sugammadex Impurity 26 (CAS CATO-C4X-190626)
- 1,1-Dimethylethyl N-[(methylthio)[(1-oxopropyl)imino]methyl]carbamate (CAS 1240515-33-6)
- 5-fluoro-1H-pyrazolo[3,4-b]pyridine (CAS 1256788-84-7)
- Semaglutide impurity 268 (CAS CATO-C4X-2226268)
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