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Ester Definition: An ester is an organic compound where the hydrogen in the compound's carboxyl group is replaced with a hydrocarbon group. Examples: Ethyl acetate is an ester. The hydrogen on the carboxyl group of acetic acid is replaced with an ethyl group. Article. Chemistry.
Esters Products. Custom Synthesis, LLC manufactures a broad range of esters for use in a variety of industries. Our products are used in personal care, cosmetics, and plastics. These products can be used as lubricants, base oils, or surfactants to give a range of different end results. Our plant has been designed in a manner that allows us to deliever high purity, low color esters as our specialty.