5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-ethoxybenzenesulfonyl chloride CAS 937700-27-1
| CAS No. | 937700-27-1 |
| Molecular Formula | C11H12ClNO6S2 |
| Molecular Weight | 353.80 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H12ClNO6S2, 5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-ethoxybenzenesulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 353.80 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-ethoxybenzenesulfonyl chloride (CAS 937700-27-1), molecular formula C11H12ClNO6S2 and molecular weight 353.80 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 5-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)-2-ethoxybenzenesulfonyl chloride 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.
Physical & Chemical Properties
| Molecular Formula | C11H12ClNO6S2 |
| Molecular Weight | 353.80 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Dioxido Standards
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Recommended Standards
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- 3-Chloro-N-(5-(5,6,7,8-tetrahydronaphthalen-2-yl)-1,3,4-oxadiazol-2-yl)benzamide (CAS 887888-26-8)
- N-(3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)-N-phenethylacetamide (CAS 378753-48-1)
- Methyl 2-amino-4-cyano-2-methylbutanoate (CAS 81080-74-2)
- 5-(3,4-Difluorophenyl)pyrazin-2-amine (CAS 1159820-80-0)
- N-(Benzo[b]thiophen-3-yl)-2,2,2-trifluoroacetamide (CAS 138900-83-1)
- 3,4-Dibutyl-2,5-diiodothiophene (CAS 133750-15-9)
- 2-(Ethylsulfonyl)-4-(p-tolyl)-6-(trifluoromethyl)pyrimidine (CAS 832737-37-8)
- [(3,4-dihydro-1h-2-benzopyran-1-yl)methyl](methyl)amine hydrochloride (CAS 31231-58-0)
- 1-Benzyl-4-bromopyridin-1-ium bromide (CAS 2589-30-2)
- 2-(2,4-Dimethoxyphenyl)-5,7-dimethyl-1H-benzo[d]imidazole (CAS 1551141-71-9)
- 1-(2-Ethylpiperidin-1-yl)-2-((2-methoxyethyl)amino)ethan-1-one hydrochloride (CAS 1568499-03-5)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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