The product of the condensation of two molecules of acetic acid is acetic anhydride. Phenibut is a synthetic aromatic amino acid. Some grains are deficient in the essential amino acid, lysine. Hydrochloric acid and potassium chlorate give chloranil. Acetate is the ion resulting from loss of from acetic acid. It also contains the unusual, poisonous amino acid azetidine-2-carboxylic acid. The reaction of permanganate with concentrated hydrochloric acid gives chlorine. Triglycerides are tri-esters consisting of a glycerol bound to three fatty acid molecules. Acetic acid is a weak monoprotic acid. Missense mutations code for a different amino acid. Reduction of linoleic acid yields linoleyl alcohol. Lactic acid and lactaldehyde are common intermediates. It is the only achiral proteinogenic amino acid. Acetic acid is the second simplest carboxylic acid (after formic acid). Trimethylglycine is an "N"-methylated amino acid.