Akademik

ester
An organic compound containing the grouping, –X(O)–O–R (X = carbon, sulfur, phosphorus, etc.; R = radical of an alcohol), formed by the elimination of H2O between the –OH of an acid group and the –OH of an alcohol group; usually written as in ethyl acetate (from acetic acid and ethyl alcohol), CH3CO—OC2H5 or CH3COOC2H5.
- carboxylic acid e. specifically, an e. derived from a carboxylic acid and an alcohol; R—CO—R′
- Cori e. SYN: d- glucose 1-phosphate.
- Embden e. hexose phosphate; a mixture of d-glucose 6-phosphate and d-fructose 6-phosphate; significant in the understanding of sugar metabolism.
- Harden-Young e. d-fructose 1,6-bisphosphate; important intermediate in sugar metabolism.
- Neuberg e. SYN: fructose 6-phosphate.
- Robison e. SYN: d- glucose 6-phosphate.
- Robison-Embden e. SYN: d- glucose 6-phosphate.
- sugar e. e. of a sugar with an organic or inorganic acid; E.G., d-glucose 6-phosphate.
- thiol e. an e. formed from a carboxylic acid and a thiol ( i.e., RCO—SR′), e.g., acetyl-coenzyme A.

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es·ter 'es-tər n any of a class of often fragrant compounds that can be represented by the formula RCOOR' and that are usu. formed by the reaction between an acid and an alcohol usu. with elimination of water

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es·ter (esґtər) a compound formed by removal of water from an acid and an alcohol, e.g., carboxylic acid esters, ROCOR′, and phosphoric acid esters (organic phosphates), RPO42−; esters are named as if they were salts of the parent acid, e.g., methyl acetate, glucose 6-phosphate.

Medical dictionary. 2011.