Methyl 3-fluoro-2-(methylthio)benzoate CAS 155256-40-9
| CAS No. | 155256-40-9 |
| Molecular Formula | C9H9FO2S |
| Molecular Weight | 200.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Methyl 3-fluoro-2-(methylthio)benzoate (C9H9FO2S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Methyl 3-fluoro-2-(methylthio)benzoate (CAS 155256-40-9), a certified reference material (molecular formula C9H9FO2S, MW 200.23 g/mol) for analytical method development and quality control.
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 | C9H9FO2S |
| Molecular Weight | 200.23 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2001 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-[(4-fluorophenyl)sulfanyl]propanoic acid (CAS 155059-10-2)
- 5-methoxy-1H-pyrrolo[2,3-c]pyridine-3-carboxylic acid (CAS 1554047-87-8)
- 1,4-Dioxaspiro[5.5]undecane-9-carboxylic acid (CAS 1547039-39-3)
- 3-(tert-butoxy)-2-cyclopropyl-3-oxopropanoic acid (CAS 155454-33-4)
- 2-(Carboxy(hydroxy)methyl)-7-fluorobenzo[d]oxazole (CAS 1804089-39-1)
- cis-tert-Butyl hexahydro-1H-pyrrolo[2,3-c]pyridine-6(2H)-carboxylate (CAS 1286755-20-1)
- 4-(4-Chlorophenyl)-2,2-dimethyl-4-oxobutanoic acid (CAS 58457-63-9)
- 6-Fluoropyrimidine-2,4(1H,3H)-dione (CAS 591-36-6)
- 3-(Bromomethyl)-6-chloro-2-methoxy-5-methylpyridine (CAS 151143-02-1)
- N-{4-[(4-methylphenyl)sulfanyl]phenyl}acetamide (CAS 339096-10-5)
- Ethyl 2-(Boc-aminomethyl)thiazole-4-carboxylate (CAS 96929-05-4)
- 2-Phenyl-3-(phenylsulfanyl)propanoic acid (CAS 35814-27-8)
- N-{1-[(4-chlorophenyl)methyl]-1-cyanoethyl}acetamide (CAS 2059937-38-9)
- endo-Gly31-Semaglutide (CAS CATO-C4X-2226282)
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