Methyl 3-(fluorosulfonyl)benzoate CAS 124397-36-0
| CAS No. | 124397-36-0 |
| Molecular Formula | C8H7FO4S |
| Molecular Weight | 218.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system, Methyl 3-(fluorosulfonyl)benzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 218.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Methyl 3-(fluorosulfonyl)benzoate (CAS 124397-36-0), molecular formula C8H7FO4S and molecular weight 218.20 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7FO4S |
| Molecular Weight | 218.20 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.) | 1992 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Methyl Standards
- Methyl 4-(fluorosulfonyl)benzoate (CAS 124397-38-2)
- methyl 2-(fluorosulfonyl)benzoate (CAS 137654-46-7)
- 4-(fluorosulfonyl)-2-methylbenzoic acid (CAS 1934400-55-1)
- 2-[4-(fluorosulfonyl)phenyl]acetic acid (CAS 402-57-3)
- 3-(Fluorosulfonyl)-4-methylbenzoic acid (CAS 21322-93-0)
- 4-(Fluorosulfonyl)-3-methylbenzoic acid (CAS 33866-06-7)
- 5-(Fluorosulfonyl)-2-methylbenzoic acid (CAS 21346-65-6)
- Methyl 2-(fluorosulfonyl)pyridine-4-carboxylate (CAS 2092076-18-9)
Recommended Standards
- 3',6-Difluorobiphenyl-2-carbaldehyde (CAS 1214390-07-4)
- 2,2'-Difluoro-[1,1'-biphenyl]-3-carbaldehyde (CAS 1214380-81-0)
- 3-(difluoromethyl)-1-(2-methylpropyl)-1H-pyrazole-4-carboxylic acid (CAS 1244964-06-4)
- 4,4'-Difluoro-[1,1'-biphenyl]-2-carbaldehyde (CAS 1214374-20-5)
- 7-Bromo-3-chloroisoquinoline-4-carbaldehyde (CAS 1581764-48-8)
- (1-(2-Fluoroethyl)piperidin-4-yl)methanol (CAS 831169-54-1)
- 2-(Oxazol-5-yl)ethan-1-amine (CAS 1083337-91-0)
- 6-Ethyl Guanine-d (CAS 183558-84-1)
- 2-Bromo-4-(methylsulfonyl)thiophene (CAS 731017-72-4)
- 4-(2-Chlorophenoxy)-3-methylaniline (CAS 946785-01-9)
- 3-(1H-indol-3-yl)-2-{[(4-methoxyphenyl)methyl]amino}propan-1-ol (CAS 1803593-64-7)
- Ethyl 2-(4-chloro-5-cyclopropyl-3-(trifluoromethyl)-1h-pyrazol-1-yl)acetate (CAS 1002033-65-9)
- 2-Ethyl-3-piperidin-4-yl-3h-imidazo[4,5-b]pyridine (CAS 932470-05-8)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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