1-BROMO-3-ETHYNYL-BENZENE

Product Name: 1-BROMO-3-ETHYNYL-BENZENE
CAS No.: 766-81-4
Chemical Name: 1-BROMO-3-ETHYNYL-BENZENE
Synonyms: 3-BROMOPHENYLACETYLENE;3'-BROMOPHENYL ACETYLENE;1-BROMO-3-ETHYNYL-BENZENE;Benzene, 1-broMo-3-ethynyl-;3-Bromophenylacetylene - [B47527]
CBNumber: CB6297455
Molecular Formula: C8H5Br
Formula Weight: 181.03
MOL File: 766-81-4.mol

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1-BROMO-3-ETHYNYL-BENZENE Property

Boiling point:: 198.24°C (rough estimate)
Density: 1.4466
refractive index: 1.5896
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
form: solid
Appearance: Colorless to light yellow Liquid
InChI: InChI=1S/C8H5Br/c1-2-7-4-3-5-8(9)6-7/h1,3-6H
InChIKey: TZDXNFAAJNEYIO-UHFFFAOYSA-N
SMILES: C1(Br)=CC=CC(C#C)=C1
CAS DataBase Reference: 766-81-4(CAS DataBase Reference)

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Safety

Hazard Codes: Xn
Risk Statements: 36/37/38-22
Safety Statements: 26-36/37/39
HS Code: 2903998090

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements

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

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

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: CDS007533
Product name: 3′-bromophenyl acetylene
Purity: Aldrich<SUP>CPR</SUP>
Packaging: 500 mg
Price: $185
Updated: 2025/07/31

TCI Chemical

Product number: B5198
Product name: 1-Bromo-3-ethynylbenzene
Purity: min. 98.0 %
Packaging: 1G
Price: $127
Updated: 2025/07/31

TCI Chemical

Product number: B5198
Product name: 1-Bromo-3-ethynylbenzene
Purity: min. 98.0 %
Packaging: 5G
Price: $380
Updated: 2025/07/31

TRC

Product number: B700633
Product name: 3-Bromophenylacetylene
Packaging: 10mg
Price: $45
Updated: 2021/12/16

Synthonix

Product number: B47527
Product name: 3-Bromophenylacetylene
Purity: 97%
Packaging: 100mg
Price: $15
Updated: 2021/12/16

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1-BROMO-3-ETHYNYL-BENZENE Chemical Properties,Usage,Production

Synthesis

3989-13-7

766-81-4

The general procedure for the synthesis of 3'-bromophenylacetylene from (3-bromophenylethynyl)trimethylsilane was as follows: intermediate 1-1 (166 g, 655.6 mmol) was dissolved in methanol (1000 mL) and placed in the reactor. Subsequently, potassium carbonate (90.6 g, 655.6 mmol) was added slowly and dropwise to the above solution. The reaction mixture was stirred at room temperature for about 30 minutes and then filtered. The filtrate was distilled under reduced pressure to remove the solvent and the residue was dissolved in ethyl acetate. This ethyl acetate solution was washed twice with distilled water to remove water soluble impurities. Finally, the organic solvent was removed by reduced pressure distillation to give intermediates 1-2 (116 g, 98% yield).

References

[1] Patent: US2018/339967, 2018, A1. Location in patent: Paragraph 0159; 0161
[2] Bioorganic and Medicinal Chemistry, 2010, vol. 18, # 2, p. 630 - 639
[3] European Journal of Organic Chemistry, 2010, # 33, p. 6323 - 6330
[4] Organic Letters, 2017, vol. 19, # 19, p. 5182 - 5185
[5] Patent: US2009/48320, 2009, A1. Location in patent: Page/Page column 62; 82

1-BROMO-3-ETHYNYL-BENZENE Preparation Products And Raw materials

Raw materials

Preparation Products

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1-BROMO-3-ETHYNYL-BENZENE Suppliers

China 118 Germany 2 India 1 Ukraine 1 United Kingdom 8 United States 19 Global 149

Energy Chemical

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View Lastest Price from 1-BROMO-3-ETHYNYL-BENZENE manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: 3'-Bromophenyl acetylene 766-81-4
Price: US $2.20-8.80/kg
Min. Order: 1kg
Purity: 99%min
Supply Ability: 100kg
Release date: 2025-08-28

Hebei Xinsheng New Material Technology Co., LTD.

Product: 1-BROMO-3-ETHYNYL-BENZENE 766-81-4
Price: US $35.00-25.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20 Ton
Release date: 2023-11-07

Hebei Xinsheng New Material Technology Co., LTD.

Product: 1-BROMO-3-ETHYNYL-BENZENE 766-81-4
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 99.9%
Supply Ability: 30000 Kg
Release date: 2023-11-15

766-81-4, 1-BROMO-3-ETHYNYL-BENZENERelated Search:

Phenylacetylene 4-Bromophenylacetylene 3-(3-BROMOPHENYL)PROP-2-YN-1-OL 4-BROMO-2-ETHYNYL-6-METHOXY-PHENOL 1-BROMO-3-ETHYNYL-4-FLUORO-BENZENE 4-(3-BROMOPHENYL)-3-BUTYN-2-OL 3-BROMO-1-ETHYNYL-6-METHOXY-BENZENE 4-(3-BROMOPHENYL)-2-METHYL-3-BUTYN-2-OL (3-BROMOPHENYLETHYNYL)TRIMETHYLSILANE 2,4-DIBROMO-6-ETHYNYL-PHENYLAMINE N-(4-BROMO-2-TRIMETHYLSILANYLETHYNYL)-N'-(1,1DIETHYLAMINO)-DIAZENYLBENZENE 2,3-DIBROMO-4-ETHYNYL-6-METHOXY-PHENOL 2-BROMO-4-CHLORO-6-ETHYNYL-PHENOL BIS(3-BROMOPHENYL)ACETYLENE 1-BROMO-3-ETHYNYL-BENZENE 2,6-DIBROMO-4-ETHYNYL-PHENOL

1-BROMO-3-ETHYNYL-BENZENE

3'-BROMOPHENYL ACETYLENE

3-BROMOPHENYLACETYLENE

Benzene, 1-broMo-3-ethynyl-

3-Bromophenylacetylene - [B47527]

766-81-4

Aromatic Halides (substituted)