Oxamic acid471-47-632 % similar 2,2-Dimethylpropanethioic acid55561-02-932 % similar Dimethylmalonic acid595-46-032 % similar Ammonium oxalate monohydrate6009-70-732 % similar Pivalamide754-10-932 % similar (2R,3R)-2,3-Bis(pivaloyloxy)succinic acid65259-81-631 % similar (2S,3S)-2,3-Bis(pivaloyloxy)succinic acid76769-55-631 % similar Alpha-ketovaleric acid1821-02-931 % similar Citraconic acid498-23-730 % similar Mesaconic acid498-24-830 % similar Alpha-ketoisocaproic acid816-66-030 % similar