2-(4-Chlorobenzenesulfonyl)ethan-1-ol CAS 35847-95-1
| CAS No. | 35847-95-1 |
| Molecular Formula | C8H9ClO3S |
| Molecular Weight | 220.67 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.
2-(4-Chlorobenzenesulfonyl)ethan-1-ol (CAS 35847-95-1), molecular formula C8H9ClO3S and molecular weight 220.67 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, 2-(4-Chlorobenzenesulfonyl)ethan-1-ol 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.) | 1967 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonyl Standards
- 4-Chlorobenzenesulfonyl Isocyanate (CAS 5769-15-3)
- 2905-23-9 2-Chlorobenzenesulfonyl chloride Benzenesulfonyl chloride, o-chloro- (6CI,7CI,8CI) Benzenesulfonyl chloride, 2-chloro- 2-Chlorobenzenesulphonyl chloride 4-11-00-00106 (Beilstein Handbook Reference) BRN 0974321 o-Chlorobenzenesulfochloride o-Chlorobenzenesulfonyl chloride EINECS 220-807-3 (CAS 2905-23-9)
- 3-(4-chlorobenzenesulfonyl)prop-2-enenitrile (CAS 1012-71-1)
- (2e)-3-(4-Chlorobenzenesulfonyl)prop-2-enenitrile (CAS 64326-48-3)
- 3-Chlorobenzenesulfonyl chloride 3-chlorobenzene-1-sulfonylchloride 3-chlorobenzenesulfonylchloride 3-chloro-benzenesulfonyl chloride 3-chlorobenzene-1-sulfonyl chloride 3-chlorobenzenesulphonyl chloride 2888-06-4 (CAS 2888-06-4)
- 4-Chlorobenzenesulfonyl chloride (CAS 98-60-2)
- 3-(4-Chlorobenzenesulfonyl)propan-1-amine (CAS 85052-90-0)
- 2-(2-Chlorobenzenesulfonyl)acetic acid (CAS 82224-89-3)
Recommended Standards
- 1-chloromethanesulfonyl-3-methoxybenzene (CAS 928782-52-9)
- 2-Chloro-1-methoxy-4-(methylsulfonyl)benzene (CAS 98490-92-7)
- 4-Chloro-2-methoxy-1-(methylsulfonyl)benzene (CAS 1820707-89-8)
- 2-Ethoxybenzenesulfonyl chloride (CAS 68800-33-9)
- 5-Cyclopropoxy-6-(methylthio)picolinonitrile (CAS 1243403-32-8)
- Potassium (3-(4-(tert-butoxycarbonyl)piperazin-1-yl)prop-1-en-2-yl)trifluoroborate (CAS 1357559-61-5)
- 2-Isopropoxyacetohydrazide hydrochloride (CAS 1049750-04-0)
- Posaconazole Impurity 15(S,S,S,S) (CAS 1246391-73-0)
- Methyl 3-hydroxythieno[3,2-b]pyridine-2-carboxylate (CAS 111042-98-9)
- 2,2,2-Trichloroethyl piperazine-1-carboxylate (CAS 779985-91-0)
- 4-((2-(Bromomethyl)phenyl)sulfonyl)morpholine (CAS 941717-06-2)
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- Methyl 2-(2-formamidothiazol-4-yl)-2-oxoacetate (CAS 64987-18-4)
- Insulin Degludec Impurity 17 (CAS CATO-C4X-215717)
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