4-(3-Methoxyphenoxy)butane-1-sulfonyl chloride CAS 1343441-15-5
| CAS No. | 1343441-15-5 |
| Molecular Formula | C11H15ClO4S |
| Molecular Weight | 278.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(3-Methoxyphenoxy)butane-1-sulfonyl chloride (CAS 1343441-15-5), molecular formula C11H15ClO4S and molecular weight 278.75 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 4-(3-Methoxyphenoxy)butane-1-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 278.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C11H15ClO4S |
| Molecular Weight | 278.75 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 Methoxyphenoxy Standards
- 4-(2-Methoxyphenoxy)butane-1-sulfonyl chloride (CAS 1339375-35-7)
- 4-(4-Methoxyphenoxy)butane-1-sulfonyl chloride (CAS 1342027-90-0)
- 1-(2-(2-Methoxyphenoxy)ethyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 943119-41-3)
- 4-(4-Methoxyphenoxy)benzene-1-sulfonamide (CAS 1094663-05-4)
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Recommended Standards
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- 2-((2-Chlorobenzyl)thio)benzoic acid (CAS 440347-30-8)
- 5-Methoxy-1H-indole-7-carbaldehyde (CAS 309976-22-5)
- 5-chloro-2-methylpyrazolo[1,5-a]pyrimidine (CAS 189116-36-7)
- n-Methyl-1-(1,3,5-trimethyl-1h-pyrazol-4-yl)methanamine (CAS 514816-08-1)
- 3-((Ethoxycarbonothioyl)thio)propane-1-sulfonic acid (CAS 34005-00-0)
- (2S,3S)-2-Amino-3-hydroxybutanamide (CAS 1448623-71-9)
- 5-[(4-fluorophenyl)methyl]-1,3-thiazol-2-amine hydrochloride (CAS 1181458-45-6)
- 2-(4-Chlorophenoxy)ethane-1-sulfonyl chloride (CAS 88107-03-3)
- 2-(Benzo[d][1,3]dioxol-5-yl)-N-ethylethan-1-amine (CAS 133011-30-0)
- Methyl octahydro-1H-indole-2-carboxylate (CAS 792888-27-8)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788694)
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