Sharp, thin alcoholic solvent note reminiscent of rubbing alcohol — dry, slightly medicinal and pungent with a rapid flash-off. Little to no aromatic character beyond the harsh isopropyl bite; not used as an odorant but occasionally present as a carrier solvent.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1166.
Colorless liquid.
Miscible with water, propylene glycol, glycerin, alcohol and most oils.
Alcoholic-ethereal, acetone-like odor. The similarity to acetone in odor is characteristic of the iso-Propanol, not the n-Propanol.
Mildly bitter-tart taste in concentrations below 5000 ppm.
It rarely forms part of the odorous perfume composition, but it may be used as a solvent or an auxiliary solvent.
The title material is used in flavor compositions to give a winey lift to various fruit flavors or introduce a mildly fermented note in banana, raspberry, cinnamon, rootbeer, ginger, vanilla, etc.
1) by reduction of acetone, which comes out of petrochemical synthesis. 2) by hydration of propylene with sulfuric acid or water with a catalyst. Propylene appears in the 'cracking' of petroleum.