Dihydroxyphenylalanine

3,4-Dihydroxyphenylalanine; 3-Hydroxy-DL-tyrosine; Dihydroxyphenylalanine Hydrochloride, (2:1); beta-Hydroxytyrosine; 3 Hydroxy DL tyrosine; 3,4 Dihydroxyphenylalanine; beta Hydroxytyrosine
A beta-hydroxylated derivative of phenylalanine. The D-form of dihydroxyphenylalanine has less physiologic activity than the L-form and is commonly used experimentally to determine whether the pharmacological effects of LEVODOPA are stereospecific.