2-Cyano-4,5-difluorobenzenesulfonyl chloride CAS 1807155-56-1
| CAS No. | 1807155-56-1 |
| Molecular Formula | C7H2ClF2NO2S |
| Molecular Weight | 237.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Cyano-4,5-difluorobenzenesulfonyl chloride (CAS 1807155-56-1), molecular formula C7H2ClF2NO2S and molecular weight 237.61 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Cyano-4,5-difluorobenzenesulfonyl chloride (C7H2ClF2NO2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Cyano-4,5-difluorobenzenesulfonyl 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.
Physical & Chemical Properties
| Molecular Formula | C7H2ClF2NO2S |
| Molecular Weight | 237.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Cyano Standards
- 4-Cyano-2,6-difluorobenzene-1-sulfonyl chloride (CAS 1384429-18-8)
- 2-cyano-4,6-difluorobenzene-1-sulfonyl chloride (CAS 1807047-85-3)
- 3-Cyano-4,5-difluorobenzenesulfonyl chloride (CAS 1807047-95-5)
- 5-Cyano-2,4-difluorobenzenesulfonyl chloride (CAS 1807241-08-2)
- Ethyl 2-cyano-3-isobutyl-5-methylhex-2-enoate (CAS 6943-84-6)
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Recommended Standards
- 1-(6-Chloro-3-pyridinyl)-4,4,4-trifluoro-1-butanone (CAS 871252-59-4)
- 1-(2-Amino-4-chloro-5-(trifluoromethyl)phenyl)ethanone (CAS 1698027-72-3)
- 1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]propan-2-one (CAS 400077-39-6)
- 1-(6-(Chloromethyl)-4-(trifluoromethyl)pyridin-2-yl)ethan-1-one (CAS 1393582-45-0)
- 2-{[5-[(2,6-dichlorobenzyl)thio]-4-(3,4-dichlorophenyl)-4H-1,2,4-triazol-3-yl]methyl}-5-[3,5-di(trifluoromethyl)phenyl]-2H-1,2,3,4-tetraazole (CAS 680214-92-0)
- 2-(6-Chloropyridin-3-yl)ethanamine hydrochloride (CAS 2055839-94-4)
- 1-(Bromomethyl)cyclohexan-1-ol (CAS 17299-10-4)
- 2-(3,4-Dimethoxyphenanthren-1-yl)-N,N-dimethylethan-1-amine (CAS 5531-98-6)
- 2-[2-(4-Methylbenzoylimino)benzothiazol-3-yl]butyric acid (CAS 1043705-09-4)
- (2S,6S)-2,6-Dimethylmorpholin-3-one (CAS 117465-51-7)
- 2-((2-Chloro-5-(trifluoromethyl)phenoxy)methyl)-1,3-dioxolane (CAS 1443328-62-8)
- ((2-(2-(2-Bromoethoxy)ethoxy)ethoxy)methyl)benzene (CAS 121537-55-1)
- N,N’-(4,6-Dibromo-1,3-phenylene)diacetamide (CAS 132530-67-7)
- Semaglutide impurity 33 (CAS CATO-C4X-222633)
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