4-Ethylphenylacetylene Chemical Properties

Boiling point:

30 °C/0.05 mmHg (lit.)

Density 

0.930 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.5420(lit.)

Flash point:

160 °F

storage temp. 

Keep in dark place,Sealed in dry,Room Temperature

form 

clear liquid

color 

Colorless to Light yellow

CAS DataBase Reference

40307-11-7(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

16-26-36-37/39

RIDADR 

UN 3334

WGK Germany 

3

Hazard Note 

Irritant

HS Code 

29029090

MSDS

• Language:English Provider:SigmaAldrich

4-Ethylphenylacetylene Usage And Synthesis

Chemical Properties

Yellow liquid

Uses

1-Ethyl-4-ethynylbenzene may be used to synthesize:

• 2,4-bis[(4-ethylphenyl)ethynyl]-6-methoxy-1,3,5-triazine
• 2-[(4-ethylphenyl)ethynyl]-4-methoxy-6-(phenylethynyl)-1,3,5-triazine
• 2-chloro-4-[(4-ethylphenyl)ethynyl]-6-methoxy-1,3,5-triazine
• 4-chloro-6-[(4-ethylphenyl)ethynyl]-N,N-diphenyl-1,3,5-triazin-2-amine

Uses

Intermediates of Liquid Crystals

General Description

1-Ethyl-4-ethynylbenzene undergoes homocoupling reaction in the presence of copper(I) chloride (catalyst) and air (oxidant) to yield symmetrical 1,4-disubstituted 1,3-diyne.

4-Ethylphenylacetylene(40307-11-7)Related Product Information

• Ethyl acetate
• Ethyl acrylate
• Acetylene
• 1-BUTYNE
• Ethanol
• Ethylparaben
• Phenylacetylene
• 4-Ethynyltoluene
• ISOXADIFEN-ETHYL
• Ethylbenzene
• 4-(TERT-BUTYL)PHENYLACETYLENE
• 1-Ethynyl-4-pentylbenzene
• 1-[4-(2-PHENYLETH-1-YNYL)PHENYL]ETHAN-1-ONE
• 1-ETH-1-YNYL-4-HEXYLBENZENE
• 1-(4-METHOXYPHENYL)-2-(4-N-PROPYLPHENYL)ACETYLENE
• 1-(4-ETHOXYPHENYL)-2-(4-N-PENTYLPHENYL)-ACETYLENE
• 1-(4-N-BUTYLPHENYL)-2-(4-ETHOXYPHENYL)ACETYLENE
• 1-Eth-1-ynyl-4-propylbenzene