4-Ethynyltoluene Chemical Properties

Melting point:

168-170

Boiling point:

168-170 °C(lit.)

Density 

0.916 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.547(lit.)

Flash point:

120 °F

storage temp. 

Sealed in dry,2-8°C

form 

Liquid

color 

Clear pale yellow

Specific Gravity

0.916

Water Solubility 

Insoluble in water.

BRN 

969653

InChIKey

KSZVOXHGCKKOLL-UHFFFAOYSA-N

CAS DataBase Reference

766-97-2(CAS DataBase Reference)

NIST Chemistry Reference

Benzene, 1-ethynyl-4-methyl-(766-97-2)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

10-36/37/38

Safety Statements 

16-26-27-36/37/39

RIDADR 

UN 3295 3/PG 3

WGK Germany 

3

RTECS 

XT2570000

Hazard Note 

Irritant/Keep Cold

HazardClass 

3

PackingGroup 

III

HS Code 

29029090

MSDS

• Language:English Provider:p-Tolyacetylene
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

4-Ethynyltoluene Usage And Synthesis

Chemical Properties

Clear pale yellow liquid

Uses

4-Ethynyltoluene was used in the synthesis of bis(bicyclic) products by the cycloaddition of alkynes to the AlN2C2.

Uses

Intermediates of Liquid Crystals

Definition

ChEBI: 4-Ethynyltoluene is a member of toluenes.

4-Ethynyltoluene(766-97-2)Related Product Information

• p-Toluenesulfonic acid
• p-Toluic acid
• Tosyl chloride
• 3-Ethynylaniline
• Xylene
• p-Tolualdehyde
• Trimethylsilylacetylene
• 1-Methyl-4-(methylsulfonyl)-benzene
• Phenylacetylene
• METHYLSTYRENE
• 1-BUTEN-3-YNE
• 4-ETHYNYL-BENZOIC ACID METHYL ESTER
• 1,4-Bis[(trimethylsilyl)ethynyl]benzene
• 1,8-Dichloro-9,10-bis(phenylethynyl) anthracene
• 1-Chloro-9,10-bis(phenylethynyl)anthracene
• 9,10-Bis(phenylethynyl)anthracene
• DI-P-TOLYLACETYLENE
• 1,4-BIS(PHENYLETHYNYL)BENZENE