Propylene glycol diacetate is primarily a solvent/carrier with a faint, mildly sweet fruity-ester odor reminiscent of dilute acetate esters. In perfumery it is used more as a diluent than an odorant, contributing very little character of its own.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1182.
Colorless liquid.
Soluble in water, miscible with alcohol and oils.
Very mild fruity-acetic odor (probably spontaneous hydrolysis on mucous membranes, since very pure, acid-free esters display the same olfactory impression).
Bitter-sweet taste at concentrations higher than 200 ppm, mild and discretely fruity taste at lower concentrations. Practically tasteless below 20 ppm.
This ester has been suggested for use as a solvent and diluent in flavor compositions, since it is superior to Propylene glycol with respect to solvent properties towards terpenes and other hydrocarbons. It is often used as a co-solvent to assist Propylene glycol where Citrus oils and other terpene-containing materials are used. Its tendency to hydrolyzation is a drawback in flavor work and it is absolutely prohibitive for perfume composition work. Other and more stable esters are used in place of the title material, while a few higher alkyl esters of Propylene glycol are used in perfumery for special purposes.
Produced by acetylation of Propylene glycol.