4-(3,5-Dimethylisoxazol-4-yl)benzenesulfonyl chloride CAS 2154-81-6
| CAS No. | 2154-81-6 |
| Molecular Formula | C11H10ClNO3S |
| Molecular Weight | 271.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 4-(3,5-Dimethylisoxazol-4-yl)benzenesulfonyl chloride (CAS 2154-81-6), a certified reference material (molecular formula C11H10ClNO3S, MW 271.72 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H10ClNO3S, 4-(3,5-Dimethylisoxazol-4-yl)benzenesulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 271.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures 4-(3,5-Dimethylisoxazol-4-yl)benzenesulfonyl chloride 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 | C11H10ClNO3S |
| Molecular Weight | 271.72 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethylisoxazol Standards
- (2E)-3-{4-[(3,5-Dimethylisoxazol-4-yl)methoxy]-phenyl}acrylic acid (CAS 1050884-51-9)
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- 1-[(3,5-Dimethylisoxazol-4-yl)sulfonyl]proline (CAS 890169-54-7)
- 3-(((3,5-Dimethylisoxazol-4-yl)methoxy)methyl)-4-methoxybenzaldehyde (CAS 1119449-82-9)
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Recommended Standards
- 4-(2-Chlorobenzyl)thiomorpholine-3,5-dione 1-oxide (CAS 338793-65-0)
- 4-Chloro-5-(((4-methoxyphenyl)thio)methyl)isoxazol-3(2H)-one (CAS 89661-16-5)
- 3-Chloro-N-((methylcarbamoyl)carbamothioyl)benzamide (CAS 306976-43-2)
- Ethyl [(5-chloro-1,3-benzoxazol-2-yl)thio]acetate (CAS 84829-54-9)
- (E)-{[4-(4-chlorophenyl)-7-thia-2,5-diazatricyclo[6.4.0.0^{2,6}]dodeca-1(8),3,5-trien-3-yl]methylidene}amino 4-fluorobenzoate (CAS 478041-89-3)
- Quinoline-6-carboxylic acid benzyl ester, 97% (CAS 863492-33-5)
- 5-Amino-2-bromobenzamide hydrochloride (CAS 1211398-47-8)
- 4-Methoxy-2,3-dimethylbenzaldehyde (CAS 38998-17-3)
- Potassium trifluoro(1-methylazetidin-3-yl)borate (CAS 2768004-68-6)
- N-Boc-L-methionine Dicyclohexylamine Salt (CAS 22823-50-3)
- 3-(3-Cyanobenzoyl)thiophene (CAS 861224-01-3)
- 2-Bromo-1,4-difluoro-3-(fluoromethyl)benzene (CAS 2244085-54-7)
- (3,4-Dimethoxy-benzyl)-[2-(4-fluoro-phenyl)-ethyl]-amine hydrochloride (CAS 355381-83-8)
- D-Leu14-Tirzepatide (CAS CATO-CPTD788920)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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