ChEBI: 2,2'-iminodipropanoic acid is an amino dicarboxylic acid that is 2,2'-iminodiacetic acid substituted by methyl groups at positions 2 and 2'. It is an amino dicarboxylic acid and an amino acid opine. It is functionally related to a propionic acid. It is a conjugate acid of a 2,2'-iminodipropanoate and a 2,2'-iminodipropanoate(1-).