Product Name

  • Name

    5-METHYL-2-OCTANONE

  • EINECS
  • CAS No. 58654-67-4
  • Density 0.814g/cm3
  • Solubility
  • Melting Point -18.52°C (estimate)
  • Formula C9H18 O
  • Boiling Point 180°Cat760mmHg
  • Molecular Weight 142.241
  • Flash Point 57.6°C
  • Transport Information
  • Appearance
  • Safety Low toxicity by ingestion. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating vapors.
  • Risk Codes
  • Molecular Structure Molecular Structure of 58654-67-4 (5-METHYL-2-OCTANONE)
  • Hazard Symbols
  • Synonyms 5-Methyl-2-octanone
  • PSA 17.07000
  • LogP 2.79180

Methyl 3-methylhexyl ketone Chemical Properties

Molecule structure of Methyl 3-methylhexyl ketone (CAS NO.58654-67-4) :

IUPAC Name: (5S)-5-methyloctan-2-one 
Molecular Weight: 142.23862 g/mol
Molecular Formula: C9H18
Density: 0.814 g/cm3 
Boiling Point: 180 °C at 760 mmHg 
Flash Point: 57.6 °C
Index of Refraction: 1.415
Molar Refractivity: 43.73 cm3
Molar Volume: 174.5 cm3
Polarizability: 17.33810-24 cm3
Surface Tension: 25.5 dyne/cm 
Enthalpy of Vaporization: 41.63 kJ/mol 
log P (octanol-water): 2.92 
Water Solubility: 263 mg/L 
Vapor Pressure: 1.900 mm Hg 
Henry's Law Constant: 2.71E-04 atm-m3/mole 
Atmospheric OH Rate Constant: 1.13E-11 cm3/molecule-sec
XLogP3: 2.9
H-Bond Acceptor: 1
Rotatable Bond Count: 5
Tautomer Count: 3
Exact Mass: 142.135765
MonoIsotopic Mass: 142.135765
Topological Polar Surface Area: 17.1
Heavy Atom Count: 10
Complexity: 96.9
Defined Atom StereoCenter Count: 1
Canonical SMILES: CCCC(C)CCC(=O)C
Isomeric SMILES: CCC[C@H](C)CCC(=O)C
InChI: InChI=1S/C9H18O/c1-4-5-8(2)6-7-9(3)10/h8H,4-7H2,1-3H3/t8-/m0/s1
InChIKey: UPVLGOPSYZTLGB-QMMMGPOBSA-N
EINECS of Methyl 3-methylhexyl ketone (CAS NO.58654-67-4) : 261-382-4

Methyl 3-methylhexyl ketone Toxicity Data With Reference

1.    

orl-mus LD50:4807 mg/kg

    TOLED5    Toxicology Letters. 30 (1986),13.

Methyl 3-methylhexyl ketone Consensus Reports

Reported in EPA TSCA Inventory.

Methyl 3-methylhexyl ketone Safety Profile

Low toxicity by ingestion. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating vapors.
Safety Statements: 24/25 
S24/25:Avoid contact with skin and eyes.
RTECS: RH1535000

Methyl 3-methylhexyl ketone Standards and Recommendations

DOT Classification:  3; Label: Flammable Liquid

Methyl 3-methylhexyl ketone Specification

  Methyl 3-methylhexyl ketone (CAS NO.58654-67-4) is also called 3-01-00-02890 (Beilstein Handbook Reference) ; 5-Methyl-2-octanone ; BRN 1746333 ; 2-Octanone, 5-methyl- ; 5-Methyloctan-2-one .

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