Composition containing a polymerizable optically active compound

1 2 1 1 22The compound provided by the present invention is a polymerizable optically active compound represented by Formula (1): wherein Ris hydrogen, chlorine or bromine; Ris hydrogen, methyl or ethyl; Ais 1,4-phenylene, biphenyl-4,4′-diyl, naphthalene-2,6-diyl or pyridine-2,5-diyl, provided that in the 1,4-phenylene arbitrary hydrogen may be replaced by chlorine, bromine or fluorine, and in the biphenyl-4,4′-diyl arbitrary hydrogen may be replaced by chlorine, bromine or fluorine; and Xis a single bond, -CH═CH- or -CHCH-.