ChemicalBook > CAS DataBase List > 2,5-DIBROMOTHIENO[3,2-B]THIOPHENE

2,5-DIBROMOTHIENO[3,2-B]THIOPHENE

Product Name
2,5-DIBROMOTHIENO[3,2-B]THIOPHENE
CAS No.
25121-87-3
Chemical Name
2,5-DIBROMOTHIENO[3,2-B]THIOPHENE
Synonyms
TT-2Br;BTH-2Br;2-b]thiophene;5-dibroMothieno[3;2,5-Dibromo-1,4-dithiapentalene;2,5-DIBROMOTHIENO[3,2-B]THIOPHENE;Thieno[3,2-b]thiophene, 2,5-dibromo-;2,5-Dibromothieno[3,2-b]thiophene>2,5-Dibromothieno[3,2-b]thiophene;2,5-DIBROMOTHIENO[3,2-B]THIOPHENE ISO 9001：2015 REACH
CBNumber
CB71474014
Molecular Formula
C6H2Br2S2
Formula Weight
298.02
MOL File
25121-87-3.mol
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2,5-DIBROMOTHIENO[3,2-B]THIOPHENE Property

Melting point:
130 °C
Boiling point:
346.7±37.0 °C(Predicted)
Density 
2.209±0.06 g/cm3(Predicted)
storage temp. 
-20°C
form 
powder to crystal
color 
White to Light yellow to Light orange
InChI
InChI=1S/C6H2Br2S2/c7-5-1-3-4(10-5)2-6(8)9-3/h1-2H
InChIKey
APDAUBNBDJUQGW-UHFFFAOYSA-N
SMILES
C12C=C(Br)SC=1C=C(Br)S2
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Safety

Hazard Codes 
Xn
Risk Statements 
22
RIDADR 
2811
WGK Germany 
3
HazardClass 
6.1
PackingGroup 
Ⅲ
HS Code 
29349990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

Precautionary statements

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
710164
Product name
2,5-Dibromothieno[3,2-b]thiophene
Purity
97%
Packaging
1g
Price
$175
Updated
2025/07/31
TCI Chemical
Product number
D3678
Product name
2,5-Dibromothieno[3,2-b]thiophene
Purity
>98.0%(GC)
Packaging
200mg
Price
$47
Updated
2025/07/31
TCI Chemical
Product number
D3678
Product name
2,5-Dibromothieno[3,2-b]thiophene
Purity
>98.0%(GC)
Packaging
1g
Price
$163
Updated
2025/07/31
TCI Chemical
Product number
D3678
Product name
2,5-Dibromothieno[3,2-b]thiophene
Purity
>98.0%(GC)
Packaging
5g
Price
$437
Updated
2025/07/31
TRC
Product number
B426163
Product name
2,5-Dibromothieno[3,2-b]thiophene
Packaging
50mg
Price
$45
Updated
2021/12/16
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2,5-DIBROMOTHIENO[3,2-B]THIOPHENE Chemical Properties,Usage,Production

Uses

2,5-Dibromothieno[3,2-b]thiophene is useful in preparation and electronic properties of fused oligothienoacenes.

Synthesis

251-41-2

25121-87-3

General procedure for the synthesis of 2,5-dibromothieno[3,2-b]thiophene from thieno[3,2-b]thiophene: Thieno[3,2-b]thiophene (2.01 g, purchased from Tokyo Chemical Industry Co., Ltd.) was added to a reaction vial with 30 mL of N,N-dimethylformamide (DMF). After stirring at room temperature until complete dissolution, N-bromosuccinimide (NBS, 6.10 g, 2.4 eq.) was slowly added. The progress of the reaction was monitored by thin layer chromatography (TLC), and after the complete disappearance of the raw material, hexane and deionized water were added to the reaction mixture for extraction. The organic phase was separated and washed sequentially with deionized water and saturated saline. The organic phase was dried over anhydrous sodium sulfate and the solvent was removed by distillation under reduced pressure to give 4.21 g of 2,5-dibromothieno[3,2-b]thiophene as a white solid in 99% yield.

References

[1] Patent: TWI630193, 2018, B. Location in patent: Paragraph 0104; 0105
[2] Chemistry - A European Journal, 2011, vol. 17, # 3, p. 866 - 872
[3] Angewandte Chemie - International Edition, 2013, vol. 52, # 10, p. 2920 - 2924
[4] Angew. Chem., 2013, vol. 125, # 10, p. 2992 - 2996,5
[5] Tetrahedron Letters, 2009, vol. 50, # 51, p. 7148 - 7151

2,5-DIBROMOTHIENO[3,2-B]THIOPHENE Preparation Products And Raw materials

Raw materials

Preparation Products

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2,5-DIBROMOTHIENO[3,2-B]THIOPHENE Suppliers

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View Lastest Price from 2,5-DIBROMOTHIENO[3,2-B]THIOPHENE manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
Product
2,5-Dibromothieno[3,2-b]thiophene 25121-87-3
Price
US $3.00-9.00/kg
Min. Order
1kg
Purity
99%min
Supply Ability
50kg
Release date
2025-07-28
Zhuozhou Wenxi import and Export Co., Ltd
Product
2,5-dibromo-thieno[3,2-b]thiophene 25121-87-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10
Zhuozhou Wenxi import and Export Co., Ltd
Product
2,5-dibromo-thieno[3,2-b]thiophene 25121-87-3
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-08

25121-87-3, 2,5-DIBROMOTHIENO[3,2-B]THIOPHENERelated Search:

2,5-Dibromo-3-octylthiophene 2,5-DIBROMO-3-BUTYLTHIOPHENE 2,5-DIBROMO-3-DECYLTHIOPHENE 2,5-DIBROMO-3,4-DINITROTHIOPHENE 2,5-Dichlorothiophene 2,5-DIBROMO-1,4-BENZENEDICARBOXALDEHYDE 2,5-Dibromo-3-hexylthiophene 2,5‐ dibroMothiazolo[5,4‐ d]thiazole 2,5-Dibromo-3,4-difluorothiophene 2,5-Dibromothiophene TETRABROMO-THIENO[3,2-B]THIOPHENE 2,5-DIBROMOTHIENO[3,2-B]THIOPHENE Thieno[3,2-b]thiophene

  • 2,5-DIBROMOTHIENO[3,2-B]THIOPHENE
  • 2,5-Dibromo-1,4-dithiapentalene
  • BTH-2Br
  • 2-b]thiophene
  • 5-dibroMothieno[3
  • 2,5-Dibromothieno[3,2-b]thiophene&gt
  • Thieno[3,2-b]thiophene, 2,5-dibromo-
  • 2,5-DIBROMOTHIENO[3,2-B]THIOPHENE ISO 9001：2015 REACH
  • TT-2Br
  • 2,5-Dibromothieno[3,2-<i>b</i>]thiophene
  • 25121-87-3
  • C6H2Br2S2
  • Heterocycle-oher series
  • OLED