2-((2-Chloroethyl)sulfinyl)ethan-1-ol CAS 127256-16-0
| CAS No. | 127256-16-0 |
| Molecular Formula | C4H9ClO2S |
| Molecular Weight | 156.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-((2-Chloroethyl)sulfinyl)ethan-1-ol is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-((2-Chloroethyl)sulfinyl)ethan-1-ol (CAS 127256-16-0), molecular formula C4H9ClO2S and molecular weight 156.63 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H9ClO2S, 2-((2-Chloroethyl)sulfinyl)ethan-1-ol contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 156.63 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C4H9ClO2S |
| Molecular Weight | 156.63 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloroethyl Standards
- 2-(2-Chloroethyl)-5-methylpyrazine (CAS 1461869-37-3)
- 4-(2-Chloroethyl)phenol (CAS 28145-35-9)
- 5-(2-Chloroethyl)-4-methylpyrimidine (CAS 22126-35-8)
- S-(2-Chloroethyl) 2-Fluoroethanethioate (CAS 406-27-9)
- N-(2-Chloroethyl)-N-methylcarbamoyl chloride (CAS 408533-17-5)
- 2-(1-chloroethyl)pyrimidin-4-amine (CAS 1502651-24-2)
- 1-(2-Chloroethyl)pyridin-2(1h)-one (CAS 51323-39-8)
- N-(2-Chloroethyl)methanesulfonamide (CAS 21896-59-3)
Recommended Standards
- 2-Methylpropane-2-sulfonyl chloride (CAS 10490-22-9)
- Isobutyl Chlorosulfite (CAS 13291-52-6)
- 4-Chloro-3,5-Dimethylphenol (CAS 88-04-0)
- 1-chloro-3-methanesulfonylpropane (CAS 54533-11-8)
- Tert-butyl 3-(methylamino)-9-azabicyclo[3.3.1]Nonane-9-carboxylate (CAS 1810070-17-7)
- N-Cbz-(S)-2-(methylamino)butyric acid (CAS 146087-16-3)
- 3-Amino-2-methyl-5,6,7,8,9,10-hexahydrocycloocta[4,5]thieno[2,3-d]pyrimidin-4(3H)-one (CAS 932929-14-1)
- Ceftezole Impurity 4 (CAS CATO-C4X-23094)
- 7,8-Dihydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one (CAS 75187-63-2)
- Boc-Glu-OFm (CAS 133906-29-3)
- Ribavirin Impurity 34 (CAS CATO-C4X-141334)
- 4-Amino-2-(methylsulfanyl)benzoic acid (CAS 1343844-11-0)
- 5,6,7-Trichloroisatin (CAS 1269468-62-3)
- Tirzepatide Impurity 16 (CAS CATO-C4X-324016)
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