5-Bromo-3-fluoro-2-(methylthio)pyridine CAS 1289007-85-7
| CAS No. | 1289007-85-7 |
| Molecular Formula | C6H5BrFNS |
| Molecular Weight | 222.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Bromo-3-fluoro-2-(methylthio)pyridine 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.
5-Bromo-3-fluoro-2-(methylthio)pyridine (CAS 1289007-85-7) is a high-purity analytical reference standard with the molecular formula C6H5BrFNS and a molecular weight of 222.08 g/mol.
Owing to a nitrile group, sulfur-containing functionality, fluorine/bromine substitution, an aromatic ring system, 5-Bromo-3-fluoro-2-(methylthio)pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H5BrFNS |
| Molecular Weight | 222.08 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- N-Fmoc-L-Phe(2-OCF3)-OH (CAS 1260593-24-5)
- Allyltriphenylphosphonium (CAS 15912-76-2)
- {2-[3,4-Dihydro-2(1H)-isoquinolinyl]-phenyl}methanamine (CAS 937599-97-8)
- DL-Norphenylphrine Hydrochloride (CAS 15308-34-6)
- 5-Benzyl-6-methyl-2-(pent-4-yn-1-yl)pyrimidin-4(1H)-one (CAS 88499-83-6)
- N-(4-(Benzyloxy)phenyl)-2-((4-ethyl-5-(pyridin-2-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 579444-09-0)
- 6'-Bromo-8'-methyl-1'H-spiro[cyclohexane-1,3'-imidazo[1,5-a]pyridine]-1',5'(2'H)-dione (CAS 1849592-70-6)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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