ChEBI: (2R,3R)-trans-fertaric acid is a cinnamate ester obtained by formal condensation of the carboxy group of trans-ferulic acid with one of the hydroxy groups of L-tartaric acid. It has a role as a metabolite. It is functionally related to a ferulic acid and a L-tartaric acid. It is an enantiomer of a (2S,3S)-trans-fertaric acid.