Oxaloacetic acid
Citric acid
(E)-1-Propene-1,2,3-tricarboxylic acid
Isocitric lactone, bis(trimethylsilyl)-
1-Oxopropane-1,2,3-tricarboxylic acid
2-Ketoglutaric acid
nicotinamide
carbon dioxide
Guanosine
Succinic acid
2,5-Cyclohexadiene-1,4-dione, 2,3-dimethoxy-5-methyl-
Fumaric acid
Hydroxybutanedioic acid