Methyl 2-(Chlorosulfonyl)-4-fluorobenzoate CAS 1156254-63-5
| CAS No. | 1156254-63-5 |
| Molecular Formula | C8H6ClFO4S |
| Molecular Weight | 252.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Methyl 2-(Chlorosulfonyl)-4-fluorobenzoate 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.
Methyl 2-(Chlorosulfonyl)-4-fluorobenzoate (CAS 1156254-63-5), molecular formula C8H6ClFO4S and molecular weight 252.65 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 2-(Chlorosulfonyl)-4-fluorobenzoate (C8H6ClFO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H6ClFO4S |
| Molecular Weight | 252.65 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 |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 5-(chlorosulfonyl)-4-fluoro-2-methylbenzoic acid (CAS 1026030-54-5)
- Methyl 4-(chlorosulfonyl)-2-fluorobenzoate (CAS 1063733-16-3)
- Methyl 3-(chlorosulfonyl)-4-fluorobenzoate (CAS 1099660-67-9)
- Methyl 3-(chlorosulfonyl)-5-fluorobenzoate (CAS 1155909-75-3)
- methyl 2-(chlorosulfonyl)-6-fluorobenzoate (CAS 120257-01-4)
- Methyl 4-(chlorosulfonyl)-3-fluorobenzoate (CAS 1219687-20-3)
- 3-(Chlorosulfonyl)-4-fluoro-5-methylbenzoic acid (CAS 1242339-88-3)
- 3-(Chlorosulfonyl)-5-fluoro-2-methylbenzoic acid (CAS 1341488-61-6)
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- 2-(2-Chloroethyl)-5-(3-nitrophenyl)-1,3-oxazole (CAS 1094382-62-3)
- 3-Chloro-1H-pyrrolo[3,2-b]pyridine-5-carbonitrile (CAS 1190311-38-6)
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- 2-(tert-Butyl)-4-cyclopropoxy-1-ethylbenzene (CAS 1243475-45-7)
- N-(3-(1H-Pyrrolo[2,3-b]pyridin-1-yl)propyl)-5-bromo-2-chlorobenzamide (CAS 1787914-10-6)
- Cyclopropyl(5-methylpyridin-3-yl)methanamine (CAS 1270418-67-1)
- 6-Amino-5-(difluoromethyl)-4-nitropicolinonitrile (CAS 1805262-78-5)
- N-(4-(5-chloro-2-methylphenyl)piperazine-1-carbonothioyl)benzamide (CAS 1024333-96-7)
- tert-Butyl 6-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate (CAS 1256360-00-5)
- 1-(1-(Methylsulfonyl)azetidin-3-yl)ethanone (CAS 1784127-59-8)
- Semaglutide impurity 101 (CAS CATO-C4X-2226101)
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