Diaminopimelic Acid. 2,6-Diaminopimelic Acid . 2,6 Diaminopimelic Acid . Acid, 2,6-Diaminopimelic . Acid, Diaminopimelic . A diamino derivative of heptanedioic acid with amino groups at C-2 and C-6 and the general formula (COOH)CH(NH2)CH2CH2CH2CH(NH2)(COOH). . 0.41