Substituted carboxylic acids CompoundStructure Substituted carboxylic acidsSubstituted amino acids γ-Butyrolactone (GBL) γ-Hydroxybutyric acid (GHB) Niacin (vitamin B3) Creatine Glyphosate Pantothenic acid (vitamin B5) 2,4-Dichlorophenoxyacetic acid (2,4-D) Menthyl isovalerate (Validolum) 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) Tilidine Ibopamine Omberacetam (GVS-111) 3-[4-[2-[(4-Fluorophenyl)-phenylmethoxy]ethyl]piperazin-1-yl]propanoic acid (S-350) Amlodipine 3-(4-{2-[Bis(4-fluorophenyl)methoxy]ethyl}-1-piperazinyl)-1-phenylpropyl decanoate (DBL-583)