Product Name

  • Name

    1,2-Pentadiene

  • EINECS 209-737-4
  • CAS No. 591-95-7
  • Article Data26
  • CAS DataBase
  • Density 0.70
  • Solubility
  • Melting Point
  • Formula C5H8
  • Boiling Point 45 °C
  • Molecular Weight 68.1185
  • Flash Point
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 591-95-7 (1,2-Pentadiene)
  • Hazard Symbols
  • Synonyms 1-Methyl-2,3-butadiene;Ethylallene
  • PSA 0.00000
  • LogP 1.73750

1,2-Pentadiene Chemical Properties

Product Name: 1,2-Pentadiene (CAS NO.591-95-7)

Molecular Formula: C5H8
Molecular Weight: 68.12g/mol
Mol File: 591-95-7.mol
EINECS: 209-737-4
Index of Refraction: 1.391 
Molar Refractivity: 24.92 cm3 
Molar Volume: 104.8 cm3 
Surface Tension: 8.4 dyne/cm 
Density: 0.649 g/cm3 
Enthalpy of Vaporization: 27.69 kJ/mol 
Boiling Point: 44.9 °C at 760 mmHg 
Vapour Pressure: 370 mmHg at 25°C
XLogP3-AA: 1.5
H-Bond Donor: 0
H-Bond Acceptor: 0
Structure Descriptors of 1,2-Pentadiene (CAS NO.591-95-7):
  IUPAC Name: penta-1,2-diene
  Canonical SMILES: CCC=C=C
  InChI: InChI=1S/C5H8/c1-3-5-4-2/h5H,1,4H2,2H3 
  InChIKey: LVMTVPFRTKXRPH-UHFFFAOYSA-N

1,2-Pentadiene Specification

 1,2-Pentadiene , its CAS NO. is 591-95-7, the synonym is Penta-1,2-diene . 

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