In ester, the red part of the molecule is carboxylic acid, the green part is the ethanoic acid portion, and the blue part is an atom that produces water. The properties of Ester are liquids, colorless, pleasant smelling, and high acids. The normal formula/molecular composition of ester is RCCOR, studies show that R may be a hydrogen atom from the aryl group. The aryl group is a group deprived from aromatic hydrocarbon by the removal of a hydrogen atom. Ester is important because it is used in soap, oils, paints, and varnishes. Soap is also something used everyday especially in this pandemic.