Liquid crystal composition and liquid crystal display device

A liquid crystal composition that has a negative dielectric anisotropy, and contains at least one compound represented by formula (1) as a first component:

• wherein, in formula (1), R1, R2 and R3 are independently alkyl having 1 to 12 carbons, alkoxy having 1 to 12 carbons, alkenyl having 2 to 12 carbons, or alkenyl having 2 to 12 carbons in which at least one of hydrogen is replaced by fluorine, in which R2 may be hydrogen;
• ring A is 1,4-phenylene, 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,3-dioxane-2,5-diyl, tetrahydropyran-2,5-diyl, or 1,4-phenylene in which at least one of hydrogen is replaced by fluorine, chlorine or methyl;
• X1, X2 and X3 are independently fluorine, chlorine, or alkyl having 1 to 12 carbons in which at least one of hydrogen may be replaced by fluorine;
• Z1, Z2, Z3 and Z4 are independently a single bond, —CH2CH2—, —CH2O—, —OCH2—, —COO— or —OCO—;
• a, b and c are independently 0, 1, 2, 3 or 4;
• and d is 0, 1 or 2.