chemical structure of IPHO

Isophorone (IPHO) is used in many end markets such as agrochemicals, fine chemistry, coating, inks, epoxy systems, isocyanates.


IPHO, an unsaturated cyclic ketone, is a raw material in many chemical synthesis: IPDA/IPDI (isophorone diamine / isophorone diisocyanate), PCMX (antimicrobial derivatives of 3,5-xylenol), Trimethylcyclohexanone…


IPHO is also used as a solvent, especially in coatings, inks and agrochemicals.

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  • Purity (% by weight) : ≥ 99,0 (isomer mixture*)
  • Appearance at 20°C : clear liquid free from suspended materials
  • Density at 20°C (g/cm3) : 0,919 - 0,922
  • Boiling point at 1013 Pa : 215,2°C
  • Flash point (closed cup) : 85 °C
  • Water solubility at 20°C :

      IPHO in water (mass fraction) : 1,2%
      water in IPHO (mass fraction) : 4,3%

  • Hansen Solubility Parameters at 25°C

      δt = 19,9
      δd = 16,6
      δp = 8,2
      δh = 7,4


* Isophorone consists essentially of 3,5,5-trimethyl-2-cyclohexene-1-one (α-isophorone or IPHO-α) in which less than
1 % of the isomer 3,5,5-trimethyl-3-cyclohexene-1-one (β-isophorone or IPHO-β) is present.

Geographic availability



  • Chemical and plastics industry
    • Fine chemistry
  • Food industry and agrochemicals
    • Agrochemicals
  • General industry
  • Paint, coatings and adhesives
    • Inks
    • Paints and coatings and inks


  • Building block
  • Solvents

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