Organic compounds that contain divalent functional group – COO – are called ester.
They are denoted by RCOOR where R may be any alkyl group. The alkyl groups of ester may be similar or different. The general formula of ester is
CnH2n+1 – COO – CnH2n+1
Where n may be any natural number.
The structural formula of ester shows that it contains a Carbonyl group.
1. Dimethyl Ester (CH3COOCH3)
Uses of Ester
1. It is used as a good solvent for paints, varnishes, oils, fats, gums, resins, cellulose etc.
2. It is used as plasticizer.
3. It is used in the preparation of artificial flavours and essences.