3-(4-Chlorophenyl) glutarate

It is typically dehydrated to its anhydride, converted to a glutarimide, and subsequently subjected to a Hofmann rearrangement to yield the final, active muscle relaxant, baclofen. 3-(4-Chlorophenyl)glutaric acid is a key intermediate in the synthesis of Baclofen, used to form the 4-chlorophenylbutyric backbone.