Droxidopa (INN; trade name Northera; also known as L-DOPS, L-threo-dihydroxyphenylserine, L-threo-DOPS and SM-5688) is a synthetic amino acid precursor which acts as a prodrug to the neurotransmitter norepinephrine (noradrenaline). Unlike norepinephrine, droxidopa is capable of crossing the protective blood–brain barrier (BBB).

CAS：23651-95-8
中文别名：(-)-(2S,3R)-2-氨基-3-羟基-3-(3,4-二羟基苯基)丙酸;屈西多巴;(2S,3R)-2-氨基-3-(3,4-二羟基苯基)-3-羟基丙酸;
英文别名：Droxidopa L-threo 3,4-Dihydroxyphenylserine;DL-threo-Dihydroxyphenylserine;(2S,3R)-2-Amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropionic Acid;DROXIDOPA;DL-THREO-DOPS;L-DOPS;DL-DOPS;L-threo-3,4-Dihydroxyphenylserine;3-dihydroxy-dl-tyrosinethreo-bet;DL-threo-Droxidopa;3-dihydroxy-betthreo-dl-tyrosin;(2S,3R)-3-(3,4-Dihydroxyphenyl)-2-amino-3-hydroxypropanoic acid;(2S,3R)-2-Amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid;
分子式：C9H11NO5
分子量：213.187
精确质量：213.064
Psa：124.01
Logp：0.2434

UNII：J7A92W69L7

密度：1.608g/cm3
沸点：549.8ºC at 760mmHg
闪点：286.3ºC
折射率：1.692
蒸汽压：6.39E-13mmHg at 25°C