2-Fluorobenzenethiol CAS 2557-78-0
| CAS No. | 2557-78-0 |
| Molecular Formula | C6H5FS |
| Molecular Weight | 128.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Fluorobenzenethiol.
2-Fluorobenzenethiol (CAS 2557-78-0), molecular formula C6H5FS and molecular weight 128.17 g/mol, is a CATO reference standard with documented purity and traceability.
2-Fluorobenzenethiol (C6H5FS) contains sulfur-containing functionality, 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).
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 | C6H5FS |
| Molecular Weight | 128.17 g/mol |
| Purity | >95% |
| 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.) | 1957 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluorobenzenethiol Standards
Recommended Standards
- 2-ethyloxan-4-one (CAS 36233-82-6)
- 2-Hydroxy-2-methylcyclohexan-1-one (CAS 3476-78-6)
- 2-Ethyl-3-methylbut-3-enoic acid (CAS 60582-27-6)
- 2-Hydroxy-4,4-dimethylcyclopentan-1-one (CAS 54639-78-0)
- N-(2-bromophenyl)-2-(4-(2,4-dimethylphenyl)piperazin-1-yl)acetamide (CAS 882080-17-3)
- D-Raffinose undecaacetate (CAS 6462-12-0)
- (R)-4-fluoro-6-methyl-2,3-dihydro-1H-inden-1-amine (CAS 1259859-29-4)
- 2,9-Dimethyldec-5-yne (CAS 19550-56-2)
- S-(4-Chlorophenyl) methylcarbamothioate (CAS 29411-04-9)
- 3-Hydroxy-3-(quinolin-6-yl)propanoic acid (CAS 1343016-11-4)
- Tripotassium hexachlororhodate (CAS 13845-07-3)
- 4-(Aminomethyl)-4-methoxytetrahydro-2h-thiopyran 1,1-dioxide (CAS 1494859-15-2)
- 4-Methyl-N-((3-methylisoxazol-5-yl)methyl)aniline (CAS 1340844-08-7)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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