4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
Synonym(s):Dibromo BTD
- CAS NO.：15155-41-6
- Empirical Formula: C6H2Br2N2S
- Molecular Weight: 293.97
- MDL number: MFCD00658844
- EINECS: 629-084-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-24 18:11:56
What is 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE?
Description
4,7-Dibromo-2,1,3-benzothiadiazole is the building block or monomer for organic semiconductors synthesis in the application of light-emitting diodes and photovoltaic devices. Intermediate for the synthesis of i.e. PCDTBT and PCPDTBT.
Chemical properties
White solid
The Uses of 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
4,7-Dibromo-2,1,3-benzothiadiazole is the building block or monomer for the synthesis of light-emitting diodes and conducting polymers for organic electronics. It is used as an intermediate for the synthesis of poly[N-9'-heptadecanyl-2,7-carbazole-alt-5,5-(4',7'-di-2-thienyl-2',1',3'-benzothiadiazole)] (PCDTBT) and poly[2,1,3-benzothiadiazole-4,7-diyl[4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene-2,6-diyl]] (PCPDTBT).
The Uses of 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
This monomer is used in the synthesis of photoactive acceptor part in low band gap conjugated polymers and oligomers for high performance OPV devices
Properties of 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
| Melting point: | 186-190 °C |
| Boiling point: | 326.6±22.0 °C(Predicted) |
| Density | 2.229±0.06 g/cm3(Predicted) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Soluble in toluene. |
| form | crystalline powder |
| pka | -3.37±0.50(Predicted) |
| color | White to Light yellow to Light orange |
Safety information for 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06 |
| GHS Hazard Statements |
H301:Acute toxicity,oral |
| Precautionary Statement Codes |
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for 4,7-DIBROMO-2,1,3-BENZOTHIADIAZOLE
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