| abstract |
A compound having an effect of preventing photodecomposition of a liquid crystal composition and having a high solubility in a liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device containing the composition are provided. It is a compound represented by the following formula (1), a liquid crystal composition containing this compound, and a liquid crystal display device using this composition. In the formula (1), R 1 , R 2 , R 3 , and R 4 are independently hydrogen or alkyl having 1 to 4 carbon atoms; Ring A 1 and ring A 2 are independently 1,4-cyclohexylene, 1,4-phenylene, and the like; Z 1 , Z 2 and Z 3 are independently a single bond, alkylene, or the like; n is 0, 1, or 2. |