Oxiracetam62613-82-5100 % similar Piracetam7491-74-949 % similar Ada (buffer)26239-55-438 % similar 1-(3-Hydroxy-1-azetidinyl)ethanone118972-96-635 % similar 1,3-Diamino-2-hydroxypropane-N,N′,N′′,N′′′-tetraacetic acid3148-72-934 % similar D-Asparagine2058-58-433 % similar Asparagine3130-87-833 % similar Asparagine70-47-333 % similar 3-(Carbamoylmethyl)-5-methylhexanoic acid181289-15-632 % similar (R)-3-(Carbamoylmethyl)-5-methylhexanoic acid181289-33-832 % similar 2-Oxo-4-phenylpyrrolidine-1-acetic acid hydrazide77472-71-031 % similar Isovaleramide541-46-831 % similar Asparagine monohydrate5794-13-830 % similar