mandelic acid

noun

man·​del·​ic acid man-ˌdel-ik- 

: an optically active crystalline hydroxy acid C₈H₈O₃ that is obtainable in the levorotatory D-form from amygdalin by hydrolysis but is usually made in the racemic form by reaction of benzaldehyde with hydrocyanic acid and then hydrochloric acid and that is used chiefly in the form of its salts as a bacteriostatic agent for genitourinary tract infections