Methyl 3-(chlorosulfonyl)-5-fluorobenzoate CAS 1155909-75-3
| CAS No. | 1155909-75-3 |
| Molecular Formula | C8H6ClFO4S |
| Molecular Weight | 252.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyl 3-(chlorosulfonyl)-5-fluorobenzoate is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyl 3-(chlorosulfonyl)-5-fluorobenzoate (CAS 1155909-75-3), molecular formula C8H6ClFO4S and molecular weight 252.65 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 3-(chlorosulfonyl)-5-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 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).
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.
CATO manufactures Methyl 3-(chlorosulfonyl)-5-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.
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 2-(Chlorosulfonyl)-4-fluorobenzoate (CAS 1156254-63-5)
- 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)
Recommended Standards
- Methyl 2-(chloromethyl)-4-oxo-3,4-dihydroquinazoline-5-carboxylate (CAS 1140964-67-5)
- 8-Ethoxy-2-oxo-2H-chromene-3-carbonyl chloride (CAS 1160249-14-8)
- 2-(2-Chloroethyl)-5-(3-nitrophenyl)-1,3-oxazole (CAS 1094382-62-3)
- 2-[1-(3-chlorophenyl)-5-oxo-4,5-dihydro-1H-pyrazol-3-yl]acetic acid (CAS 1094331-77-7)
- 5-[(3-Fluorophenoxy)methyl]-1,3,4-oxadiazol-2-amine (CAS 1219827-52-7)
- (6-Methylquinolin-2-yl)methanamine (CAS 1087790-60-0)
- 2,3,6-Trifluorobenzyl alcohol (CAS 114152-19-1)
- 4-Amino-5-iodonicotinaldehyde (CAS 902837-57-4)
- 2-(5-Bromo-6-methoxypyridin-2-yl)acetonitrile (CAS 1206775-56-5)
- 1-Bromo-4-(iodomethyl)benzene (CAS 55883-45-9)
- Oxacillin Impurity 1 (CAS CATO-C4X-23211)
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- 4-Amino-2-chloro-N-[2-(dimethylamino)ethyl]benzamide (CAS 926189-20-0)
- D-Ser32-Tirzepatide (CAS CATO-CPTD788677)
Why CATO?
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