5,5'-Dibromo-2,2'-bithiophene

Product Name: 5,5'-Dibromo-2,2'-bithiophene
CAS No.: 4805-22-5
Chemical Name: 5,5'-Dibromo-2,2'-bithiophene
Synonyms: M8230;2T-2Br;2TH-2Brb;SPECS AC-776/41252583;2,5'-DibroMobithiophene;2,2'-Bi(5-bromothiophene);5,5'-DibroMo-2,2'-dithienyl;5,5'-dibromo-2,2'-dithiophene;5,5'-Dibromo-2,2'-bithiophene;5,5'-Dibromo-2,2'-bithiophene
CBNumber: CB5223848
Molecular Formula: C8H4Br2S2
Formula Weight: 324.06
MOL File: 4805-22-5.mol

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5,5'-Dibromo-2,2'-bithiophene Property

Melting point:: 144-146 °C(lit.)
Boiling point:: 318.6±37.0 °C(Predicted)
Density: 1.951±0.06 g/cm3(Predicted)
storage temp.: Keep in dark place,Sealed in dry,Room Temperature
form: powder to crystal
color: White to Light yellow to Light orange
Water Solubility: Slightly soluble in water.
InChI: InChI=1S/C8H4Br2S2/c9-7-3-1-5(11-7)6-2-4-8(10)12-6/h1-4H
InChIKey: SXNCMLQAQIGJDO-UHFFFAOYSA-N
SMILES: C1(C2SC(Br)=CC=2)SC(Br)=CC=1
CAS DataBase Reference: 4805-22-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xn
Risk Statements: 20/21/22
Safety Statements: 36/37-24/25
WGK Germany: 3
HS Code: 29349990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

P370+P378In case of fire: Use … for extinction.

P403+P235Store in a well-ventilated place. Keep cool.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 515493
Product name: 5,5′-Dibromo-2,2′-bithiophene
Purity: 99%
Packaging: 1g
Price: $86.5
Updated: 2023/06/20

Sigma-Aldrich

Product number: 515493
Product name: 5,5′-Dibromo-2,2′-bithiophene
Purity: 99%
Packaging: 5g
Price: $291
Updated: 2023/06/20

TCI Chemical

Product number: D2755
Product name: 5,5'-Dibromo-2,2'-bithiophene
Purity: >98.0%(GC)
Packaging: 1g
Price: $47
Updated: 2025/07/31

TCI Chemical

Product number: D2755
Product name: 5,5'-Dibromo-2,2'-bithiophene
Purity: >98.0%(GC)
Packaging: 5g
Price: $128
Updated: 2025/07/31

TRC

Product number: D425025
Product name: 5,5’-Dibromo-2,2-bithiophene
Packaging: 2.5g
Price: $970
Updated: 2021/12/16

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5,5'-Dibromo-2,2'-bithiophene Chemical Properties,Usage,Production

Chemical Properties

white to light yellow shiny flakes or

Uses

It is an active pharmaceutical ingredient and an OLED (organic light-emitting diode) intermediate.

Uses

A termination reagent for polymer ization

Synthesis

492-97-7

4805-22-5

Using 2,2'-bithiophene (5.40 g, 32.4 mmol) as starting material, the reaction was stirred with N-bromosuccinimide (NBS, 11.57 g, 64.8 mmol, 2 eq.) in a solvent mixture of chloroform/acetic acid (1:1 v/v, 300 mL) for 4 hours at 70 °C. Upon completion of the reaction, the reaction mixture was diluted with dichloromethane (50 mL) and saturated aqueous sodium carbonate solution (100 mL). The organic phase was separated and the aqueous phase was extracted with dichloromethane (3 x 50 mL). The organic phases were combined, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give a light yellow solid. The solid was washed with acetone to give the pure product 5,5'-dibromo-2,2'-bithiophene (1a, 10.42 g, 98% yield). To further improve the purity, it was recrystallized from tetrahydrofuran (THF). The structure of the product was confirmed by the following characterization data: 1H NMR (DMSO-d6, 600 MHz) δ: 7.23-7.22 (d, J = 3.9 Hz, 2H), 7.15-7.14 (d, J = 3.9 Hz, 2H); 13C NMR (DMSO-d6, 100 MHz) δ: 136.86, 131.60, 136.86, 131.60, 135.22, 110.84 125.22, 110.84; MS (ESI+): m/z = 324.05; UV-Vis (DMSO) λmax = 325 nm; IR (ATR): 3069 cm-1 (Ar-H stretching), 1683 cm-1 (conjugated C=C stretching), 1416 cm -1 (R1-C=C-R2 cis stretching), 1293 cm-1 (C=C bending). Elemental analysis results: calculated C 29.65, H 1.24, S 19.79; measured C 30.03, H 1.40, S 18.13.

References

[1] Bulletin of the Chemical Society of Japan, 1991, vol. 64, # 8, p. 2566 - 2568
[2] Journal of the Chinese Chemical Society, 2018, vol. 65, # 7, p. 828 - 834
[3] Tetrahedron Letters, 2010, vol. 51, # 1, p. 205 - 208
[4] Tetrahedron Letters, 2015, vol. 56, # 2, p. 368 - 373
[5] Helvetica Chimica Acta, 1996, vol. 79, # 3, p. 755 - 766

5,5'-Dibromo-2,2'-bithiophene Preparation Products And Raw materials

Raw materials

2,5-Dibromothiophene Chloroform Diethyl ether Cupric bromide n-Butyllithium

Preparation Products

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5,5'-Dibromo-2,2'-bithiophene Suppliers

Americas 1 Belgium 3 Canada 1 China 206 Europe 2 Germany 6 India 12 Japan 3 Lithuania 1 Slovakia 1 South Korea 2 Switzerland 2 The Netherlands 1 United Kingdom 11 United States 20 Global 272

Henan qinpeng technology co., ltd

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View Lastest Price from 5,5'-Dibromo-2,2'-bithiophene manufacturers

Henan Fengda Chemical Co., Ltd

Product: 5,5'-Dibromo-2,2'-bithiophene 4805-22-5
Price: US $200.00-1.00/KG
Min. Order: 1KG
Purity: 99%, 99.5% Sublimated
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-30

Career Henan Chemical Co

Product: 5,5'-Dibromo-2,2'-bithiophene 4805-22-5
Price: US $1.00/KG
Min. Order: 1G
Purity: 98%
Supply Ability: 1000KG
Release date: 2018-08-10

4805-22-5, 5,5'-Dibromo-2,2'-bithiopheneRelated Search:

Thifensulfuron 5-ACETYL-2,2'-BITHIENYL Tetrahydrothiophene 1,3-Dibromo-5,5-dimethylhydantoin 2,2-Bis(bromomethyl)propane-1,3-diol 2,5-Dibromothiophene 1,2-Dibromopropane Cephalothin sodium 2,2'-BITHIOPHENE 4,4'-DIBROMO-2,2'-BITHIOPHENE 3,3'-Dibromo-2,2'-bithiophene 5-BROMO-2 2'-BITHIOPHENE 96 5-BROMO-7-(5-BROMO-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-7-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE 5,5'-Dibromo-2,2'-bithiophene 1,2-DICYANO-1,2-BIS(2,4,5-TRIMETHYL-3-THIENYL)ETHENE 2,2'-diformyl-4,4'-dibromo-3,3'-bithiophene 2,2'-dimethoxycarbonyl-4,4'-dibromo-3,3'-bithiophene 4,4'-dibromo-3,3'-bithiophene-2,2'-dicarboxylic acid

SPECS AC-776/41252583

5,5'-dibromo-2,2'-dithiophene

5,5''-DIBROMO-2,2''-BITHIOPHENE: 99.8%

2,2'-Bi(5-bromothiophene)

5,5'-Dibromo-2,2'-bithiophene,99%

2-broMo-5-(5-broMothiophen-2-yl)thiophene

2,5'-DibroMobithiophene

5,5'-DibroMo-2,2'-dithienyl

IN1547, 5,5'-Dibromo-2,2'-bithiophene

2TH-2Brb

2,2'-Bithiophene,5,5'-dibromo-

5,5'-Dibromo-2,2'-bithiophene 99%

2,2'-Bithiophene, 5,5'-dibroMo- 5,5'-DibroMo-2,2'-bithienyl

5,5'-DibroMo-2,2'-bithiophenyl

5,5'-dibromo-2,2'-bisthiophene

5,5'-Dibromo-2,2'-bithiophene&gt

5,5'-Dibromo-2,2'-bithiophene ISO 9001：2015 REACH

M8230

2T-2Br

5,5'-Dibromo-2,2'-bithiophene

4805-22-5

C8H4S2Br2

C8H4Br2S2

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