ChemicalBook--->CAS DataBase List--->174508-31-7

174508-31-7

174508-31-7 Structure

174508-31-7 Structure
IdentificationBack Directory
[Name]

5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
[CAS]

174508-31-7
[Synonyms]

4-b][1
2,5-Dibromo-3,4-ethylenedioxythiophene>
2,5-Dibromo-3,4-ethylenedioxythiophene 97%
5,7-dibroMo-2H,3H-thieno[3,4-b][1,4]dioxine
5,7-DIBROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE
2,3-Dihydro[2,5-dibroMothioeno] [3,4-b]-1,4-dioxin
Thieno[3,4-b]-1,4-dioxin, 5,7-dibromo-2,3-dihydro-
5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine97%
5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine 97%
5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine ISO 9001:2015 REACH
[Molecular Formula]

C6H4Br2O2S
[MDL Number]

MFCD01651770
[MOL File]

174508-31-7.mol
[Molecular Weight]

299.97
Chemical PropertiesBack Directory
[Melting point ]

98 °C
[Boiling point ]

306.5±42.0 °C(Predicted)
[density ]

2.139±0.06 g/cm3(Predicted)
[storage temp. ]

?20°C
[CAS DataBase Reference]

174508-31-7
Safety DataBack Directory
[Hazard Codes ]

Xn
[Risk Statements ]

20/21/22-36/37/38-22
[Safety Statements ]

22-26-36/37/39-24/25
[WGK Germany ]

3
[Hazard Note ]

Irritant
[HS Code ]

29349990
Hazard InformationBack Directory
[Chemical Properties]

Needle-like solid
[Uses]

5,7-Dibromo-2,3-dihydrothieno[3,4-b]-1,4-dioxine is used in the preparation of 3,4-ethylenedioxythiophene oligomers with optical and redox properties.
[General Description]

2,5-Dibromo-3,4-ethylenedioxythiophene (DBEDOT) is a monomer which is used in the synthesis of highly conducting poly(3,4-ethylenedioxythiophene) (PEDOT) polymer. This polymer is formed by solid-state polymerisation of DBEDOT and is used widely in organic-light emitting diodes and polymer field effect transistors. DBEDOT is a well-ordered crystalline monomer and produces PEDOT polymer which has a high degree of order.
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