Definition: Acetate, also known as propylene glycol (PG), is a type of non-toxic synthetic polymer used in several applications, including plastics, resins, and pharmaceuticals. It has excellent mechanical properties but can be toxic when ingested or absorbed into the body. The word "acetate" itself does not have an exact definition as it often refers to the chemical compound acetic acid (CH3COOH) with the same molecular formula in its isotopically pure state, which is a very volatile and colorless gas. However, for purposes of this answer, I will provide a brief overview and definition. Acetate is a diacetyl derivative, meaning it consists of three carbon atoms bonded to one oxygen atom. It has a chemical formula of CH2=CHCOOH, where C represents carbon, H represents hydrogen, and O represents oxygen. The acetic acid isomers can have various names depending on the application or industrial use: 1) Acetate (a colorless gas), 2) Propyraldehyde, 3) Propolactam, or 4) Acetone.