Product Name

  • Name

    2-ETHYNYLTOLUENE 97

  • EINECS
  • CAS No. 766-47-2
  • Article Data41
  • CAS DataBase
  • Density 0.922
  • Solubility
  • Melting Point 285 °C (decomp)
  • Formula C9H8
  • Boiling Point 50-60ºC
  • Molecular Weight 116.163
  • Flash Point 35 ºC
  • Transport Information UN 3295
  • Appearance
  • Safety
  • Risk Codes R10;R36/37/38   
  • Molecular Structure Molecular Structure of 766-47-2 (2-ETHYNYLTOLUENE  97)
  • Hazard Symbols
  • Synonyms Toluene,o-ethynyl- (6CI,7CI,8CI); (2-Methylphenyl)acetylene; (2-Methylphenyl)ethyne;(o-Methylphenyl)acetylene; 1-Ethynyl-2-methylbenzene; 2-Ethynyltoluene;2-Tolylacetylene; o-Tolylacetylene
  • PSA 0.00000
  • LogP 1.97630

2-Ethynyltoluene Chemical Properties

Molecular Structure:

Molecular Formula: C9H8
Molecular Weight: 116.1598
IUPAC Name: 1-Ethynyl-2-methylbenzene
Synonyms of 2-Ethynyltoluene (CAS NO.766-47-2): 2-Methylphenylacetylene
CAS NO: 766-47-2
Product Categories: Alkynes;Organic Building Blocks;Terminal 
Index of Refraction: 1.534
Molar Refractivity: 38.43 cm3
Molar Volume: 123.6 cm3
Surface Tension: 35.3 dyne/cm
Density: 0.93 g/cm3
Flash Point: 44 °C
Enthalpy of Vaporization: 39.03 kJ/mol
Boiling Point: 170.7 °C at 760 mmHg
Vapour Pressure of 2-Ethynyltoluene (CAS NO.766-47-2): 1.93 mmHg at 25°C

2-Ethynyltoluene Safety Profile

Hazard Codes of 2-Ethynyltoluene (CAS NO.766-47-2): IrritantXi
Risk Statements: 10-36/37/38 
R10: Flammable. 
R36/37/38: Irritating to eyes, respiratory system and skin.
Safety Statements: 16-26-36 
S16: Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36: Wear suitable protective clothing.
RIDADR: UN 3295 3/PG 3
WGK Germany: 3

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