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

CAS No.：174508-31-7

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

Product Name:	5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine
Synonyms:	5,7-DIBROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE;5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine 97%;5,7-dibroMo-2H,3H-thieno[3,4-b][1,4]dioxine;2,3-Dihydro[2,5-dibroMothioeno] [3,4-b]-1,4-dioxin;4-b][1;2,5-Dibromo-3,4-ethylenedioxythiophene 97%;5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine97%;2,5-Dibromo-3,4-ethylenedioxythiophene&gt
CAS:	174508-31-7
MF:	C6H4Br2O2S
MW:	299.97
EINECS:
Product Categories:	Thiophen;Materials Science;New Products for Materials Research and Engineering;Organic and Printed Electronics;Synthetic Intermediates;Synthetic Tools and Reagents;Heterocyclic Compounds;Thiophens;Thiophene Monomers and Building Blocks
Mol File:	174508-31-7.mol

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

Melting point	98 °C
Boiling point	306.5±42.0 °C(Predicted)
density	2.139±0.06 g/cm3(Predicted)
storage temp.	-20°C
solubility	Chloroform (Slightly), Methanol (Slightly)
form	Solid
color	Grey to Dark Blue
CAS DataBase Reference	174508-31-7

Safety Information

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

MSDS Information

5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine Usage And Synthesis

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.
Uses	Used as a monomer in the synthesis of poly(3,4-ethylenedioxythiophene) (PEDOT) polymer which are used in electrochromic devices.
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.

5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine Preparation Products And Raw materials

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