proline betaine, (S)-1,1-Dimethylpyrrolidin-1-ium-2-carboxylate, 1-Methylproline methylbetaine, 1,1-dimethylpyrrolidinium-2-carboxylate, L-Proline betaine, Methyl hygrate betaine, N,N-Dimethyl-L-proline, Stachydrine hydrochloride, Cadabine, stachydrine, Pyrrolidinium, 2-carboxy-1,1-dimethyl-, hydroxide, inner salt, (S)-