(RS)-MCPG is a phenylglycine derivative and a non-selective antagonist of group I and II metabotropic glutamate receptors (mGluRs).
It has been used in long-term potentiation (LTP) as well as long-term depression (LTD) research and proved that certain LTP and LTD pathways depend on mGluRs.
[1][2] Its full chemical name is (RS)-α-methyl-4-carboxyphenylglycine.
It appears as a white solid and its molecular weight is 209.2 Da.
Its molecular formula is C10H11NO4.