Esters

Esters, in organic chemistry, compounds formed, along with water, by the reaction of acids and alcohols. Because this process is analogous to the neutralization of an acid by a base in salt formation, esters were formerly called ethereal salts. This term is misleading because esters, unlike salts, are not ionized in solution (see Acids and Bases; Chemistry, Organic). Esters can be formed from both organic and inorganic acids. For example, the simple ester ethyl nitrate …

…Amyl nitrite is used in the treatment of asthma and epileptic convulsions as an antispasmodic. Nitroglycerin and amyl nitrite both cause blood-vessel dilation thereby lowering blood pressure. Ethyl chaulmoograte has been used in the treatment of leprosy. Dimethyl sulfate (often used in organic synthesis as a methylating agent) and diethyl sulfate are extremely dangerous in vapor form and must be handled cautiously. See also Fats and Oils. ------------------------------------------------------------------------ **Bibliography** Encarta Enclcolpedia '99. Microsoft Inc. "Esters"