Pyrrolidinium, 2-carboxy-4-hydroxy-1,1-dimethyl-, inner salt, (2S,4R)-
Betonicine
Pyrrolidinium, 2-carboxy-4-hydroxy-1,1-dimethyl-, hydroxide, inner salt, (2S-trans)-
2-Carboxy-4-hydroxy-1,1-dimethylpyrrolidinium hydroxide, inner salt, L-trans-
Achilleine
Betonicin
Achillein
trans-4-Hydroxyproline betaine
Pyrrolidinium, 2-carboxy-4-hydroxy-1,1-dimethyl-, inner salt, (2S-trans)-