Beta-phenylglycidic acid (and more commonly its ethyl ester, ethyl methylphenylglycidate / 'strawberry aldehyde') carries a jammy, ripe strawberry character with a sweet, slightly balsamic-green undertone. In isolation it reads as candied red fruit with a faint waxy-cocoa nuance.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 1119.
White crystals.
Very slightly soluble in water, better in hot water, soluble in alcohol and oils.
Mild, sweet, caramellic-sour odor of considerable tenacity. A highly purified material is said to be virtually odorless.
Although many esters of this acid and its derivatives are used in perfumes and flavors, the acid itself has found only very little application. Its contribution to a fragrance is negligible, and its value as a food acid is very limited.
1) from Chloro-hydroxy-beta-phenylpropionic acid and alkali. 2) from Cinnamic aldehyde by treatment with alkaline hydrogen peroxide in the cold.