Dihydroxyphenylalanine

Dihydroxyphenylalanine may refer to either of two chemical compounds:

• <small>D</small>-DOPA (R), 3,4-dihydroxyphenylalanine
• <small>L</small>-DOPA (S), 3,4-dihydroxyphenylalanine, a precursor of a neurotransmitter