4-(O-tolyloxy)butane-1-sulfonyl chloride CAS 1341697-62-8
| CAS No. | 1341697-62-8 |
| Molecular Formula | C11H15ClO3S |
| Molecular Weight | 262.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4-(O-tolyloxy)butane-1-sulfonyl chloride (CAS 1341697-62-8), a certified reference material (molecular formula C11H15ClO3S, MW 262.75 g/mol) for analytical method development and quality control.
4-(O-tolyloxy)butane-1-sulfonyl chloride (C11H15ClO3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H15ClO3S |
| Molecular Weight | 262.75 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.) | 1991 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related O Standards
- 4-(M-tolyloxy)butane-1-sulfonyl chloride (CAS 1202760-80-2)
- 4-(P-tolyloxy)butane-1-sulfonyl chloride (CAS 1343592-30-2)
- 4-(O-tolyloxy)benzenesulfonamide (CAS 342612-91-3)
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Recommended Standards
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- 2-Fluoro-3-phenylbicyclo[1.1.1]pentane-1-carboxylic acid (CAS 2648962-09-6)
- Cinnarizine impurity 10 (CAS CATO-C4X-139810)
- 2,2-difluoro-2H-1,3-benzodioxole-4-sulfonamide (CAS 1909347-73-4)
- 4-(2-Aminoethyl)heptanamide (CAS 1315368-80-9)
- (S)-1-(4-chloro-2-(trifluoromethyl)phenyl)-2-methoxyethan-1-amine (CAS 1388803-81-3)
- Ethyl 2-(p-tolyl)pyrimidine-5-carboxylate (CAS 65586-64-3)
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