3-Bromo-2,5-difluorobenzenethiol CAS 1349718-58-6
| CAS No. | 1349718-58-6 |
| Molecular Formula | C6H3BrF2S |
| Molecular Weight | 225.05 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 3-Bromo-2,5-difluorobenzenethiol.
3-Bromo-2,5-difluorobenzenethiol (CAS 1349718-58-6) is a high-purity analytical reference standard with the molecular formula C6H3BrF2S and a molecular weight of 225.05 g/mol.
The molecular framework of 3-Bromo-2,5-difluorobenzenethiol (C6H3BrF2S) is characterized by sulfur-containing functionality, fluorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 3-Bromo-2,5-difluorobenzenethiol 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 | C6H3BrF2S |
| Molecular Weight | 225.05 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1991 |
| Halogen Content | F/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-(1H-pyrazol-1-yl)pyrazine (CAS 1159816-09-7)
- 4-Bromo-3,5-difluorothiophenol (CAS 1160575-05-2)
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Recommended Standards
- 2-Bromo-3,5-difluorobenzenethiol (CAS 1349718-49-5)
- 2-Bromo-5,6-difluorobenzenethiol (CAS 1349719-14-7)
- 4-Bromo-2,3-difluorobenzenethiol (CAS 1349716-82-0)
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