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In chemistry, a racemic mixture, or racemate (/resimet, r-, ræsmet/),[1] is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule. The first known racemic mixture was racemic acid, which Louis Pasteur found to be a mixture of the two enantiomeric isomers of tartaric acid. A sample with only a single enantiomer is an enantiomerically pure or enantiopure compound.[2] Contents 1 Etymology 2 Nomenclature 3 Properties 4 Crysta... [wikipedia]