2-Methylbutanoic acid116-53-0100 % similar (+)-2-Methylbutanoic acid1730-91-2100 % similar 2-Methylbutanoic acid600-07-7100 % similar 2-Methylvaleric acid97-61-062 % similar Ethylmalonic acid601-75-258 % similar 2-Ethylbutanoic acid88-09-558 % similar β-Aminoisobutyric acid10569-72-958 % similar 3-Aminoisobutyric acid144-90-158 % similar 3-Mercaptoisobutyric acid26473-47-258 % similar 2-Methylhexanoic acid4536-23-657 % similar (+)-Methylsuccinic acid3641-51-856 % similar 2-Methylheptanoic acid1188-02-955 % similar (S)-2-Hydroxybutyric acid3347-90-854 % similar (±)-3-Methyl-2-oxovaleric acid1460-34-054 % similar (+)-α-Aminobutyric acid1492-24-652 % similar D-α-Aminobutyric acid2623-91-852 % similar α-Aminobutyric acid2835-81-652 % similar 2-Chlorobutanoic acid4170-24-552 % similar 2-Bromobutyric acid80-58-052 % similar α-Aminobutyric acid80-60-452 % similar