Woody-earthy-mossy, slightly spicy odor,
somewhat resembling Oakmoss (certain types
of extract), Cardamom (with emphasis on
the earthy notes) and, in extreme dilution,
Ambre-like.
Colorless (when freshly distilled) oily liquid.
Insoluble in water, soluble in alcohol and oils.
Turns brownish if poorly stored (exposure to
air and daylight).
B.P. approximately 255°C. Sp.Gr. 0.99.
Trace amounts of 2-ISOBUTYLQUINOLINE are frequently used in perfume compositions along with tenacious (highboiling) fixatives such as Vetiver, Patchouli,
macrocyclic musks, Oakmoss products, etc.
If not properly fixed, the Quinoline odor will
appear with undesirable strength in the dryout of the fragrance. Effective concentrations
may be less than 0.1 percent in the total perfume oil. The effect is more that of a
general "lift" than actually an odor contribution, and the quinoline odor should not be
part of the fragrance picture, but should
appear with an undetectable note of radiation
and strength.
Occasionally used in Tobacco flavor compositions.
2-ISOBUTYLQUINOLINE can be produced from alpha-iso-Butylamine and Acrolein.
