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2,5-Dibromothiophene

CAS No.
3141-27-3
Chemical Name:
2,5-Dibromothiophene
Synonyms
Dibromothiophene;S0505;TH-2Bra;2,5 DBT;NSC 4488;2,5-Dibromthiophen;2,5-Bromo Thiophene;2,5-DIBROMOTHIOPHENE;2,5-dibromo-thiophen;2,5-Dibromlthiophene
CBNumber:
CB1694455
Molecular Formula:
C4H2Br2S
Molecular Weight:
241.93
MDL Number:
MFCD00005420
MOL File:
3141-27-3.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-27 23:41:23
Product description Number Pack Size Price
2,5-Dibromothiophene 95% 108472 25g $67.4
2,5-Dibromothiophene 95% 108472 100g $155
2,5-Dibromothiophene >95.0%(GC) D1549 25g $35
2,5-Dibromothiophene >95.0%(GC) D1549 100g $98
2,5-Dibromothiophene D3483-20 10g $312
More product size

2,5-Dibromothiophene Properties

Melting point -6 °C (lit.)
Boiling point 211 °C (lit.)
Density 2.147 g/mL at 25 °C (lit.)
refractive index 1.627-1.63
Flash point 99 °C
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility Chloroform, Methanol
form Liquid
color Clear pale yellow to brown
Specific Gravity 2.147
Water Solubility practically insoluble
BRN 109899
InChI 1S/C4H2Br2S/c5-3-1-2-4(6)7-3/h1-2H
InChIKey KBVDUUXRXJTAJC-UHFFFAOYSA-N
SMILES Brc1ccc(Br)s1
CAS DataBase Reference 3141-27-3(CAS DataBase Reference)
FDA UNII F0033K8CXM
NIST Chemistry Reference Thiophene, 2,5-dibromo-(3141-27-3)
EPA Substance Registry System Thiophene, 2,5-dibromo- (3141-27-3)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  T+,Xi
Risk Statements  68-43-36/37/38-28-20/21
Safety Statements  45-36/37/39-28A-26-36
RIDADR  UN2810
WGK Germany  3
Hazard Note  Irritant
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  II
HS Code  29349990
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
1
4 0

2,5-Dibromothiophene price More Price(53)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 108472 2,5-Dibromothiophene 95% 3141-27-3 25g $67.4 2026-04-30 Buy
Sigma-Aldrich 108472 2,5-Dibromothiophene 95% 3141-27-3 100g $155 2026-04-30 Buy
TCI Chemical D1549 2,5-Dibromothiophene >95.0%(GC) 3141-27-3 25g $35 2026-04-30 Buy
TCI Chemical D1549 2,5-Dibromothiophene >95.0%(GC) 3141-27-3 100g $98 2026-04-30 Buy
Usbiological D3483-20 2,5-Dibromothiophene 3141-27-3 10g $312 2026-06-03 Buy
Product number Packaging Price Buy
108472 25g $67.4 Buy
108472 100g $155 Buy
D1549 25g $35 Buy
D1549 100g $98 Buy
D3483-20 10g $312 Buy

2,5-Dibromothiophene Chemical Properties,Uses,Production

Chemical Properties

Light Yellow Liquid

Uses

2,5-Dibromothiophene, is mainly used as pharmaceutical intermediate and synthesis intermediate.

Uses

2,5-Dibromothiophene was used as starting reagent for the synthesis of α,α′-didecylquater-, -quinque- and -sexi-thiophenes. It was used in the preparation of soluble α,ω-diformyl-a-oligothiophenes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 58, p. 3072, 1993 DOI: 10.1021/jo00063a028
Synthesis, p. 890, 1988 DOI: 10.1055/s-1988-27740

General Description

2,5-Dibromothiophene polymerizes by debromination with magnesium catalyzed by nickel compounds to form poly(2,5- thienylene) .

References

[1] Tetrahedron Letters, 2010, vol. 51, # 1, p. 205 - 208
[2] Journal of Organic Chemistry, 1993, vol. 58, # 11, p. 3072 - 3075
[3] Synthesis, 1988, # 11, p. 890 - 891
[4] Journal of Organic Chemistry, 2018, vol. 83, # 2, p. 930 - 938
[5] Patent: KR2018/17709, 2018, A. Location in patent: Paragraph 0173; 0176-0179

1003-09-4
3141-27-3
Synthesis of 2,5-Dibromothiophene from 2-Bromothiophene
Global( 427)Suppliers
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Hebei Chuanghai Biotechnology Co,.LTD
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View Lastest Price from 2,5-Dibromothiophene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,5-Dibromothiophene pictures 2026-09-09 2,5-Dibromothiophene
3141-27-3
$40.00 1KG 98%+ 300MT/year Speranza Chemical Co., Ltd.
2,5-Dibromothiophene  pictures 2026-05-28 2,5-Dibromothiophene
3141-27-3
$19.00 1KG 99.% 10 ton Hebei Chuanghai Biotechnology Co,.LTD
2,5-Dibromothiophene pictures 2025-04-04 2,5-Dibromothiophene
3141-27-3
1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.
Thiophene,2,5-dibromo- 2,5-DIBROMO THIOPHENE 98.0%MIN TH-2Bra 2,5-Dibromthiophen 2,5-DibroMothiophene, 95% 25GR 2,5-Dibromothiophene,95% alpha,alpha-Dibromothiophene NSC 4488 2, 5 - two br thiophene 2,5-Dibromothiophene Vetec(TM) reagent grade, 94% 2,5-DIBROMOTHIOPHENE 2,5 DBT 2,5-dibromo-thiophen Dibromothiophene 2,5-Dibromothiophene,96% 2,5-Dibromothiophene, 95%, for synthesis 2,5-Dibromothiophene> 2,5-Dibromothiophene ISO 9001:2015 REACH S0505 2,5-Dibromlthiophene Tiotropium bromide Impurity 23 2,5-Bromo Thiophene 2,5-Dibromothiophene in isooctane 3141-27-3 C4H2Br2S C4H2SBr2 Br2C4H2S Heterocyclic Building Blocks Halogenated Heterocycles Thiophenes Building Blocks Sulphur Derivatives Thiophene&Benzothiophene Thiophenes Metal Isotopes Thiophens Sulfur & Selenium Compounds Halogenated Heterocycles Heterocyclic Building Blocks ThiophenesBuilding Blocks Heterocycle-oher series bc0001