3,5,5-Trimethylhexanal has been suggested for use in perfume compositions as a very powerful masking agent. In extreme dilution, its
odor is generally considered pleasant, but the
opinion is not unanimous. It has found extensive use as the main
active ingredient in various types of masking
odors, room fresheners, deodorizers, etc. It is
relatively stable against oxidation and polymerization, but it will produce intensely yellow colored condensation products with Anthranilates, darker with Quinolines or Indoles.
However, it is rarely used in connection with
those materials, more often with alifatic
aldehydes, Monoterpenes, Pine fragrance
materials, etc.
