ethyl 2-(chlorosulfonyl)-2-methylpropanoate CAS 55896-99-6
| CAS No. | 55896-99-6 |
| Molecular Formula | C6H11ClO4S |
| Molecular Weight | 214.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), ethyl 2-(chlorosulfonyl)-2-methylpropanoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
ethyl 2-(chlorosulfonyl)-2-methylpropanoate (CAS 55896-99-6) is a high-purity analytical reference standard with the molecular formula C6H11ClO4S and a molecular weight of 214.67 g/mol.
Structurally, ethyl 2-(chlorosulfonyl)-2-methylpropanoate (C6H11ClO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 214.67 g/mol, it falls into the medium-molecular-weight range. 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 | C6H11ClO4S |
| Molecular Weight | 214.67 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, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related ethyl Standards
- Methyl 5-(Chlorosulfonyl)pentanoate (CAS 1408058-14-9)
- Methyl 2-(chlorosulfonyl)-3-methylbutanoate (CAS 144037-05-8)
- Butyl 2-(chlorosulfonyl)acetate (CAS 866128-20-3)
- Ethyl 4-(chlorosulfonyl)butanoate (CAS 319452-60-3)
- methyl 3-(chlorosulfonyl)-2,2-dimethylpropanoate (CAS 914216-23-2)
- Methyl 3-(chlorosulfonyl)-2-methylbutanoate (CAS 2091807-48-4)
- Ethyl 2-[(chlorosulfonyl)(methyl)amino]acetate (CAS 1249246-15-8)
- methyl 3-[(chlorosulfonyl)(methyl)amino]propanoate (CAS 1250575-99-5)
Recommended Standards
- 7-(Chloromethyl)-2-methyl-5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (CAS 943656-55-1)
- 6-Chloro-4-methoxybenzo[d]thiazol-2-amine (CAS 2351222-44-9)
- 6-Chloro-2,3-dihydrobenzo[b]thiophene-2-carboxylic acid (CAS 26018-74-6)
- n-Carbamothioyl-4-chlorobenzamide (CAS 38334-94-0)
- (6-Chloropyridin-2-yl)methanesulfonyl chloride (CAS 1196155-59-5)
- 1-Ethyl-4-(methoxycarbonyl)-1H-imidazole-5-carboxylic acid (CAS 1707571-79-6)
- 3-Mercaptopropyltriethoxysilane (CAS 14814-09-6)
- N-methyl-N-(prop-2-yn-1-yl)cyclohexanamine hydrochloride (CAS 1909305-65-2)
- Des-Gly9-Oxytocin (CAS CATO-C4X-20662)
- 2-Methoxy-5-(pyridin-2-yl)benzaldehyde (CAS 163257-19-0)
- 1-Bromo-1,1-dichlorotrifluoroethane (CAS 354-50-7)
- 1-Oxo-1H-isothiochromene-3-carboxylic acid (CAS 4361-85-7)
- Ethyl (Z)-2-cyano-3-[3-(4-fluorophenyl)-2,1-benzisoxazol-5-yl]-2-propenoate (CAS 685107-62-4)
- Peptide Impurity 82 (CAS 10491-78-8)
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