2-Chloroethyl benzenesulfonate CAS 16670-48-7
| CAS No. | 16670-48-7 |
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloroethyl benzenesulfonate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.67 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).
CATO supplies 2-Chloroethyl benzenesulfonate (CAS 16670-48-7), a certified reference material (molecular formula C8H9ClO3S, MW 220.67 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.
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 | C8H9ClO3S |
| Molecular Weight | 220.67 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.) | 1961 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloroethyl Standards
- 4-(2-Chloroethyl)benzenesulfonic acid (CAS 7296-73-3)
- N-(2-chloroethyl)-2-morpholino-2-oxoacetamide (CAS 726154-08-1)
- 2-(1-Chloroethyl)-6-methoxynaphthalene (CAS 72775-41-8)
- Ethyl 4-(2-chloroethyl)piperazine-1-carboxylate (CAS 64822-11-3)
- 5-(2-chloroethyl)-2,2-difluoro-2H-1,3-benzodioxole (CAS 1890665-98-1)
- Ethyl 4-(2-chloroethyl)piperidine-4-carboxylate (CAS 1276186-74-3)
- 1-(2-Chloroethyl)-4-piperidinecarboxylic Acid Ethyl Ester (CAS 869112-14-1)
- Ethyl 2-(2-chloroethyl)piperidine-1-carboxylate (CAS 865076-02-4)
Recommended Standards
- (3-Methoxyphenyl)methanesulfonyl chloride (CAS 163295-76-9)
- Methyl 4-chloro-3-ethoxythiophene-2-carboxylate (CAS 1708401-29-9)
- (2-Chloro-6-(methylsulfonyl)phenyl)methanol (CAS 1549395-22-3)
- 4-Chloro-3-isopropoxythiophene-2-carboxylic acid (CAS 1774902-71-4)
- 5-[[(2R)-2-aminopropyl]-ethyl-amino]-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2728780-05-8)
- 4-Chloro-2-isopropylpyridine (CAS 98420-91-8)
- 2-Chloro-3-(2-chlorocyclopent-1-en-1-yl)quinoxaline (CAS 37030-68-5)
- (1-Acetamido-2-phenylethyl)boronic acid (CAS 88765-81-5)
- (E)-5-((2-(4-chlorophenyl)hydrazono)methyl)-2-(ethylthio)-1-methyl-1H-imidazole (CAS 477854-44-7)
- 2-Methanesulfonyl-1,2,3,4-tetrahydroisoquinolin-5-amine (CAS 1179014-45-9)
- 1-(tert-Butoxy)-2-cyclopropoxy-3-fluorobenzene (CAS 1243284-93-6)
- N-Benzyloxycarbonyl Serotonin O-Sulfate (CAS 85376-01-8)
- Ethyl 2-cyclohexylacetate (CAS 5452-75-5)
- FMRF Amide Related Peptide. (CAS 149471-12-5)
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