Ester COO
Definition
Organic compounds that contain divalent functional group –
COO – are called ester.
General Formula
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.
Structure
The structural formula of ester shows that it contains a
Carbonyl group.
RCOOR
RCOOR
Examples
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.
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