HYDROPHENANTHRENE DERIVATIVE

摘要

PROBLEM TO BE SOLVED: To obtain a compound capable of effectively improving the stability of the liquid crystal phase within the temperature range, especially low temperatures by adding thereof, a liquid crystal composition and a liquid crystal display element having a wide temperature range by using the compound. SOLUTION: This hydrophenanthrene derivative is represented by formula (I). The nematic liquid crystal composition and liquid crystal display element comprise the derivative. One example of the derivative is represented by formula (II) (R is C3H7).