Ectoine96702-03-3100 % similar Azetidine-2-carboxylic acid2133-34-841 % similar (±)-2-Azetidinecarboxylic acid2517-04-641 % similar Carbamylglutamic acid1188-38-139 % similar Proline147-85-339 % similar D-Proline344-25-239 % similar Dl-proline609-36-939 % similar (+)-Pipecolic acid1723-00-838 % similar cis-4-Hydroxy-D-proline2584-71-638 % similar Pipecolic acid3105-95-138 % similar Pipecolic acid4043-87-238 % similar Hydroxyproline51-35-438 % similar Pipecolic acid535-75-138 % similar cis-4-Hydroxy-L-proline618-27-938 % similar N-Methyl-L-glutamic acid35989-16-338 % similar Acetyllysine692-04-636 % similar Boc-D-glu(otbu)-oh104719-63-336 % similar N-Methyl-D-aspartic acid6384-92-536 % similar 2-Aminothiazoline-4-carboxylic acid2150-55-235 % similar (S)-2-Acetamido-4-(tert-butoxy)-4-oxobutanoic acid117833-18-835 % similar