Propargyl alcohol has a sharp, pungent, geranium-like odor with a somewhat mustard-like, irritating character. It is aggressive and chemical in isolation, not a typical perfumery material — it is more commonly known as an industrial solvent/intermediate than a fragrance ingredient.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1156.
Colorless mobile liquid.
Miscible with water, alcohol and oils, but not soluble in mineral oil, many hydrocarbons, etc.
Powerful and very diffusive, but rather pleasant, foliage-green, Geranium-leaf-like odor of poor tenacity. Gassy at high concentrations, but pleasant-sweet in extreme dilution.
The title material is considered a hazard to human skin. The vapors have a depressing effect upon the human CNS.
1) as a by-product in the manufacture of 2-Butyne-1,4-diol from Acetylene plus Formaldehyde in presence of a catalyst. 2) from beta-Chloroallylalcohol plus Sodium hydroxide.