4-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)benzenesulfonyl chloride CAS 889940-71-0
| CAS No. | 889940-71-0 |
| Molecular Formula | C9H8ClNO5S2 |
| Molecular Weight | 309.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)benzenesulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 4-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)benzenesulfonyl chloride (CAS 889940-71-0), a certified reference material (molecular formula C9H8ClNO5S2, MW 309.75 g/mol) for analytical method development and quality control.
The molecular framework of 4-(1,1-Dioxido-3-oxoisothiazolidin-2-yl)benzenesulfonyl chloride (C9H8ClNO5S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8ClNO5S2 |
| Molecular Weight | 309.75 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
- 1-[4-(1,1-Dioxido-1,2-benzisothiazol-3-yl)-piperazin-1-yl]propan-2-ol (CAS 346448-88-2)
- N-(4-(1,1-Dioxido-1,2-thiazinan-2-yl)phenyl)pivalamide (CAS 899731-74-9)
- 7,7-Dioxido-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl benzoate (CAS 338776-89-9)
- N1-(4-(1,1-Dioxido-1,2-thiazinan-2-yl)phenyl)-N2-methyloxalamide (CAS 899956-12-8)
- (4,4-Dioxido-1H-benzo[e][1,3,4]thiadiazin-3-yl)(4-methylpiperidin-1-yl)methanone (CAS 1251630-61-1)
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(1-methoxypropan-2-yl)acetamide (CAS 878723-45-6)
- 2-(1,1-Dioxido-3-oxobenzo[d]isothiazol-2(3H)-yl)-N-(3-methoxypropyl)acetamide (CAS 799257-07-1)
- 3-[(1,1-Dioxido-1,2-benzisothiazol-3-yl)amino]-2-thioxo-4-thiazolidinone (CAS 591212-77-0)
Recommended Standards
- 3-Phenylimidazo[1,2-a]pyridine (CAS 92961-15-4)
- 4-Chloro-5-[(2-hydroxyethyl)(methyl)amino]-2-(4-methoxyphenyl)-3(2H)-pyridazinone (CAS 449778-65-8)
- 3-Chloro-1-((4-methylpiperazin-1-yl)methyl)-5-nitro-1H-indazole (CAS 89331-89-5)
- 5-(3-Chlorobenzyl)-3,5-dihydro-4H-pyridazino[4,5-b]indol-4-one (CAS 903161-02-4)
- [2-Methyl-4-(trifluoromethyl)-1,3-thiazol-5-yl]methanesulfonyl chloride (CAS 1803567-40-9)
- 8-Methoxy-2-methyl-5-nitroquinoline (CAS 857495-64-8)
- 5-Cyclopropoxy-6-methoxy-N-methylnicotinamide (CAS 1243380-49-5)
- FOY-251 benzyl ester hydrochloride, >98% (CAS 71079-12-4)
- 2-((Pyridin-3-ylamino)methyl)phenol (CAS 13199-80-9)
- 4-Chloro-6-nitro-1H-indazole (CAS 885519-11-9)
- Ethanethioic acid, S-[[1-[[(1,1-dimethylethoxy)carbonyl]amino]cyclopropyl]methyl] ester (CAS 849149-53-7)
- 2,7-Bis(thiophen-2-yl)-[1,2,4]triazolo[1,5-a]pyridine-8-carbonitrile (CAS 866144-66-3)
- 2,2′-[1,4-Phenylenebis(methylidynenitrilo)]bis[phenol] (CAS 13060-68-9)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com