(2R,4R)-4-Hydroxypyrrolidine-2-carboxylic acid hydrochloride77449-94-631 % similar 4-Amino-3-hydroxybutanoic acid352-21-631 % similar (S)-(+)-4-Amino-3-hydroxybutanoic acid7013-05-031 % similar (R)-(-)-Amino-3-hydroxybutanoic acid7013-07-231 % similar 4-Amino-3-hydroxybutanoic acid924-49-231 % similar 2-Azetidinone930-21-231 % similar Diethyl 3-hydroxyglutarate32328-03-330 % similar 5-Amino-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide76801-93-930 % similar 3-Hydroxycyclobutanecarboxylic acid194788-10-830 % similar