Bis(2-ethylhexyl) maleate is the chemical compound with the structural formula , where the two carboxyl group are mutually cis. It can be described as the double ester of maleic acid with the alcohol 2-ethylhexanol. It is commonly called dioctyl maleate ( DOM), reflecting the older usage of "octane" to refer to any 8-carbon alkane, straight-chained or branched.
The compound is manufactured by treating 2-ethylhexanol with maleic anhydride and an esterification catalyst. It is a key intermediate raw material in the production of docusate (DOSS, docusate) salts, used medically as and , and in many other applications as versatile .
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