2,5-Dibromothiophene
Pharmaceutical Materials 2025-03-02
CAS Number: 3141-27-3
Molecular Formula: C4H2Br2S
Molecular Weight: 241.93 g/mol
Appearance: Shallow yellow liquid
Melting Point: -6 °C
Boiling Point: 209.5 °C
Density: 2.2 g/cm3
Usage: Used as an intermediate in organic synthesis and material chemistry.
| Aspect | Details |
|---|---|
| Name | 2.5-Dibromothiophene |
| CAS Number | 3141-27-3 |
| Chemical Formula | C₄H₂Br₂S |
| Molecular Weight | 241.93 g/mol |
| Physical Appearance | Light yellow to transparent liquid |
| Melting Point | -6°C |
| Boiling Point | 211°C |
| Density | 2.147 g/mL at 25°C |
| Reactivity | Highly reactive due to bromine atoms; participates in palladium-catalyzed cross-coupling reactions (e.g., Suzuki, Stille). |
| Solubility | Insoluble in water; soluble in organic solvents (e.g., chloroform, methanol). |
| Applications | – Organic Synthesis: Intermediate in the synthesis of conjugated thiophene derivatives for OLEDs, organic solar cells, and electronic materials. |
| – Material Chemistry: Used to introduce thiophene units into bioactive molecules and functional materials. | |
| Safety Information | – Hazards: Toxic, irritant (T+, Xi); H315. H319. H335 warnings. |
| – Handling: Requires inert atmosphere, PPE (gloves, goggles), and proper ventilation. | |
| Storage Conditions | Store in a cool, dark, and dry place; avoid exposure to moisture and light. |
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