3-Butene-1,2,3-tricarboxylic acid26326-05-6100 % similar 1,2,3,4-Butanetetracarboxylic acid1703-58-847 % similar Malic acid617-48-144 % similar D-Malic acid636-61-344 % similar Malic acid6915-15-744 % similar L-Malic acid97-67-644 % similar D-Aspartic acid1783-96-643 % similar Polyaspartic acid25608-40-643 % similar (+)-Methylsuccinic acid3641-51-843 % similar (2S)-2-Chlorobutanedioic acid4198-33-843 % similar Thiodisuccinic acid4917-76-443 % similar Aspartic acid56-84-843 % similar Bromosuccinic acid584-98-543 % similar L-Aspartic acid6899-03-243 % similar Thiomalic acid70-49-543 % similar Bromosuccinic acid923-06-843 % similar Edds20846-91-741 % similar Itaconic acid97-65-440 % similar N-Methyl-D-aspartic acid6384-92-539 % similar 3-Methylbutanoic acid503-74-239 % similar