The most prestigious competition is the Australian Football League (AFL), culminating in the annual AFL Grand Final, currently the highest attended club championship event in the world. The rules of Australian football are governed by the AFL Commission with the advice of the AFL's Laws of the Game Committee.or the centenary of the VFL/AFL in 1996, the Australian Football Hall of Fame was established. In that year 136 identities were inducted, including 100 players, 10 coaches, 10 umpires, 10 administrators and six media representatives.
In chemistry, an ester is a chemical compound derived from an acid (organic or inorganic) in which at least one âOH (hydroxyl) group is replaced by an âOâalkyl (alkoxy) group.[1] Usually, esters are derived from a carboxylic acid and an alcohol.
Esters can also be derived from an inorganic acid and an alcohol. Thus, the nomenclature extends to inorganic oxo acids, e.g. phosphoric acid, sulfuric acid, nitric acid and boric acid. For example, triphenyl phosphate is the ester derived from phosphoric acid and phenol.s a class, esters serve as protecting groups for carboxylic acids. Protecting a carboxylic acid is useful in peptide synthesis, to prevent self-reactions of the bifunctional amino acids. Methyl and ethyl esters are commonly available for many amino acids; the t-butyl ester tends to be more expensive.