Synonyms: 2,5-Dimethylpiperazine (R-(R*,R*))-tartrate (1:1);Piperazine, 2,5-dimethyl-, (2R,3R)-2,3-dihydroxybutanedioate (1:1);Piperazine, 2,5-dimethyl-, (theta-(theta,theta))-2,3-dihydroxybutanedioate (1:1);2,5-dimethylpiperazine 2,3-dihydroxybutanedioate (1:1)