(-)-(2S,3R)-2-Amino-3-hydroxy-3-(3,4-dihydroxyphenyl)propionic acid (-)-threo-3-(3,4-Dihydroxyphenyl)-L-serine 23651-95-8 DROXIDOPA Droxidopa [INN:JAN] Droxidopa [Latin] L-DOPS L-Threodops L-Tyrosine, beta,3-dihydroxy-, (beta-R)- (9CI) L-Tyrosine, beta,3-dihydroxy-, threo- L-threo-3-(3,4-Dihydroxyphenyl)serine Serine, 3-(3,4-dihydroxyphenyl)-, L-threo- threo-Dopaserine