4-Fluoro-3-methylbenzenethiol CAS 845790-87-6
| CAS No. | 845790-87-6 |
| Molecular Formula | C7H7FS |
| Molecular Weight | 142.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Fluoro-3-methylbenzenethiol is closely related to sulfur-containing functionality, fluorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Fluoro-3-methylbenzenethiol (CAS 845790-87-6), a certified reference material (molecular formula C7H7FS, MW 142.19 g/mol) for analytical method development and quality control.
The molecular framework of 4-Fluoro-3-methylbenzenethiol (C7H7FS) is characterized by sulfur-containing functionality, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H7FS |
| Molecular Weight | 142.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- 3-Fluoro-2-methylbenzenethiol (CAS 1208075-28-8)
- 2-Fluoro-6-methylbenzenethiol (CAS 1208075-43-7)
- 2-Fluoro-5-methylbenzenethiol (CAS 1208076-74-7)
- 3-Fluoro-5-methylbenzenethiol (CAS 1314930-68-1)
- 2-Fluoro-3-methylbenzenethiol (CAS 1823052-76-1)
- 2-Fluoro-4-methylbenzene-1-thiol (CAS 956037-84-6)
- 3-Fluoro-4-methylbenzenethiol (CAS 64359-35-9)
- 4-Fluoro-2-methylbenzenethiol (CAS 845823-04-3)
Recommended Standards
- 5-Fluoro-2-methylbenzenethiol (CAS 845823-03-2)
- 1-FLUORO-2-(METHYLTHIO)BENZENE 2-FLUOROPHENYL METHYL SULFIDE 2-Fluorothioanisole 655-20-9 AS04284 O-FLUOROTHIOANISOLE (CAS 655-20-9)
- 2-Methoxy-4-methylphenol-3,5,6-d3,OD (CAS 20189-08-6)
- 3-Fluorothioanisole 4-Methylbenzenesulfonic acid sodium salt 658-28-6 Toluene-4-sulfonic acid sodium salt p-Toluenesulfonic acid sodium salt (CAS 658-28-6)
- 3-Chloro-2,6-difluorophenylmethylsulfone (CAS 1208077-29-5)
- 4,6-Diamino-3-pyridinecarboxylic acid (CAS 75776-48-6)
- 3-Oxo-2,4-diphenylbutanenitrile (CAS 25369-03-3)
- 8-Bromo-7-methylimidazo[1,5-a]pyridine-3-carboxylic acid (CAS 1427388-89-3)
- Ethyl 4-methanesulfonylpiperidine-4-carboxylate (CAS 1372589-30-4)
- 2-(4-(Methylthio)phenyl)-N-(thieno[2,3-d]pyrimidin-4-yl)acetamide (CAS 919846-25-6)
- 4-Hydroxy-3-(1-(phenylimino)ethyl)furan-2(5H)-one (CAS 23580-15-6)
- Atosiban Impurity 99 (CAS CATO-C4X-229399)
- 3,6,6-Trimethyl-1-phenyl-6,7-dihydro-1H-indazol-4(5H)-one (CAS 21269-61-4)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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