Sodium salt of the broad spectrum EAA ligand, DL-2-Amino-4-phosphonobutanoic acid (AP4) (sc-200430). See separate isomers (sc-200429 and sc-200432).
Evans et al (1979) Antagonism of excitatory amino acid-induced responses and of synaptic excitation in the isolated spinal cord of the frog. Br.J.Pharmacol. 67 591. Evans et al (1982) The effect of a series of w-phosphonic-a-carboxylic amino acids on electrically evoked and amino acid induced responses in isolated spinal cord preparations. Br.J.Pharmacol. 75 65.