7-Fluorobenzo[b]thiophene CAS 346592-74-3
| CAS No. | 346592-74-3 |
| 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 7-Fluorobenzo[b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Fluorobenzo[b]thiophene (CAS 346592-74-3), molecular formula C8H5FS and molecular weight 152.19 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 7-Fluorobenzo[b]thiophene (C8H5FS) contains sulfur-containing functionality, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 152.19 g/mol, it falls into the medium-molecular-weight range. 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 | 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.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluorobenzo Standards
- 3-Fluorobenzo[b]thiophene (CAS 1038780-99-2)
- 5-Fluorobenzo[b]thiophene (CAS 70060-12-7)
- 6-Fluorobenzo[b]thiophene (CAS 205055-10-3)
- 7-Fluorobenzo[d]oxazol-5-amine (CAS 1268154-08-0)
- 6-Fluorobenzo[d]isoxazol-3-ylamine (CAS 177995-38-9)
- 2-Fluorobenzo[d]oxazol-4-amine (CAS 1806300-37-7)
- 4-Fluorobenzo[d]isoxazol-3-amine (CAS 904815-05-0)
- 6-Fluorobenzo[c]isoxazol-3(1H)-one (CAS 1260869-05-3)
Recommended Standards
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- 3-(Aminomethyl)-2-methylpyridine (CAS 58539-64-3)
- Tamsulosin Impurity 28 (CAS 1495375-67-1)
- 1-(3,4-Dihydroxyphenyl)cyclopropanecarbonitrile (CAS 952664-49-2)
- 5-Nitrobarbituric acid trihydrate (CAS 6209-44-5)
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Why CATO?
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