2-Ethoxy-5-fluorobenzenethiol CAS 1379199-18-4
| CAS No. | 1379199-18-4 |
| Molecular Formula | C8H9FOS |
| Molecular Weight | 172.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 172.22 g/mol gives 2-Ethoxy-5-fluorobenzenethiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Ethoxy-5-fluorobenzenethiol (CAS 1379199-18-4) is a high-purity analytical reference standard with the molecular formula C8H9FOS and a molecular weight of 172.22 g/mol.
2-Ethoxy-5-fluorobenzenethiol (C8H9FOS) 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Ethoxy-5-fluorobenzenethiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H9FOS |
| Molecular Weight | 172.22 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.) | 1991 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Ethoxy Standards
- 2-Ethoxy-4-fluorobenzenethiol (CAS 1207891-59-5)
- Ethyl 2-ethoxy-3-methylcyclopropane-1-carboxylate (CAS 1212192-55-6)
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Recommended Standards
- (2-Fluoro-6-methoxyphenyl)(methyl)sulfane (CAS 1378573-53-5)
- methyl 4-methoxycyclohexane-1-carboxylate (CAS 137058-17-4)
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- 2-(((2,2,2-Trifluoroethyl)amino)methyl)phenol (CAS 1016879-17-6)
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- 25-Hydroxyvitamin D3-d3 (CAS 140710-94-7)
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