5-Fluorobenzo[b]thiophene CAS 70060-12-7
| CAS No. | 70060-12-7 |
| Molecular Formula | C8H5FS |
| Molecular Weight | 152.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 152.19 g/mol gives 5-Fluorobenzo[b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Fluorobenzo[b]thiophene (CAS 70060-12-7) is a high-purity analytical reference standard with the molecular formula C8H5FS and a molecular weight of 152.19 g/mol.
5-Fluorobenzo[b]thiophene (C8H5FS) 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 5-Fluorobenzo[b]thiophene 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 | C8H5FS |
| Molecular Weight | 152.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Why CATO?
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