4-Fluoro-2-methoxybenzenethiol CAS 398456-80-9
| CAS No. | 398456-80-9 |
| Molecular Formula | C7H7FOS |
| Molecular Weight | 158.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-Fluoro-2-methoxybenzenethiol (CAS 398456-80-9), molecular formula C7H7FOS and molecular weight 158.19 g/mol, is a CATO reference standard with documented purity and traceability.
4-Fluoro-2-methoxybenzenethiol (C7H7FOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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).
CATO manufactures 4-Fluoro-2-methoxybenzenethiol 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 | C7H7FOS |
| Molecular Weight | 158.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 4-Formyl-hexanoic acid methyl ester (CAS 66757-48-0)
- 2,6,7-Trimethyl-[1,2,4]triazolo[1,5-b][1,2,4]triazine (CAS 61139-77-3)
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- 2-Bromo-6-methyl-N-(5-methyl-1H-pyrazol-3-yl)pyrimidin-4-amine (CAS 2054922-17-5)
- 6-Oxa-9-azaspiro[4.5]Decane hydrochloride (CAS 1321518-38-0)
- (9-Cyclohexyl-9H-purin-6-yl)-benzylamine (CAS 42240-63-1)
- (R)-6-Methoxy-4-(oxiran-2-yl)quinoline (CAS 314741-44-1)
- 2-{1-[(2,6-dichlorophenyl)methyl]-2-methyl-1H-imidazol-4-yl}quinoline (CAS 860784-94-7)
- semaglutide (CAS 782487-28-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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