Plastic lens material, production process of the material, composition for plastic lens, plastic lens obtained by curing the composition, and production process of the plastic lens

A plastic lens material comprising a compound conztaining a group represented by the following general formula (1) as a terminal group and a group represented by the following general formula (2) as a repeating unit, wherein a part or all of the 1,4-cyclohexane dicarboxylate structural units contained in the compound are a cis structure:

• wherein each R1 independently represents an allyl group or a methallyl group and each X independently represents an organic residue derived from a polyhydric alcohol having 2 to 20 carbon atoms and containing 2 to 6 hydroxy groups, provided that X can have a branched structure containing a terminal group of the general formula (1) and a repeating unit of the general formula (2), through an ester bond.