Four racemic compounds (R, S)-4'-(1-methylheptyloxycarbonyl) biphenyl-4-yl 4-[3-(2,2,3,3,4,4,4-heptafluorobutoxy) prop-1-oxy] benzoates were synthesized and characterized. Their mesomorphic properties, such as phase transitions temperatures and enthalpies were measured by polarizing optical microscope and differential scanning calorimetry. The example of mixture containing racemic components and its properties is presented.