Product Name

  • Name

    5-METHYL-2-HEPTEN-4-ONE

  • EINECS
  • CAS No. 81925-81-7
  • Article Data6
  • CAS DataBase
  • Density 0.831 g/cm3
  • Solubility
  • Melting Point -66.9°C (estimate)
  • Formula C8H14O
  • Boiling Point 173.8 °C at 760 mmHg
  • Molecular Weight 126.199
  • Flash Point 62.7 °C
  • Transport Information UN 1993 3/PG 1
  • Appearance
  • Safety 16
  • Risk Codes 10
  • Molecular Structure Molecular Structure of 81925-81-7 (5-METHYL-2-HEPTEN-4-ONE)
  • Hazard Symbols R10:;
  • Synonyms 5-methyl-2-hepten-4-one,99%;5-methyl-2-hepten-4-one 98% predominan;
  • PSA 17.07000
  • LogP 2.17770

5-Methyl-2-hepten-4-one Chemical Properties

Molecular Structure of 2-Hepten-4-one,5-methyl- (CAS NO.81925-81-7):

IUPAC Name: (E)-5-methylhept-2-en-4-one 
Empirical Formula: C8H14O
Molecular Weight: 126.1962
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 3
FEMA: 3761
Polar Surface Area: 17.07 Å2
Index of Refraction: 1.429
Molar Refractivity: 39.15 cm3
Molar Volume: 151.7 cm3
Surface Tension: 25.2 dyne/cm
Density: 0.831 g/cm3
Flash Point: 62.7 °C
Enthalpy of Vaporization: 41.01 kJ/mol
Boiling Point: 173.8 °C at 760 mmHg
Vapour Pressure: 1.25 mmHg at 25°C
Product Categories: Alphabetical Listings; Flavors and Fragrances; M-N

5-Methyl-2-hepten-4-one Safety Profile

Risk Statements: 10
R10:Flammable.
Safety Statements: 16
S16:Keep away from sources of ignition.
RIDADR: UN 1993 3/PG 1
WGK Germany 3
HazardClass: 3
PackingGroup: III

5-Methyl-2-hepten-4-one Specification

 2-Hepten-4-one,5-methyl- , with CAS number of 81925-81-7, can be called 5-methyl-2-hepten-4-on ; filbertone ; 5-methyl-2-hepten-4-one ; 5-methyl-2-hepten-4-one 98% predominan ; 5-methyl-2-hepten-4-one,99% ; 5-methyl-2-hept-4-one .

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