Lithium, .mu.-1,3-phenylenedi- (9CI) ,its cas register number is 2592-85-0. It also can be called Lithium, m-phenylenedi- (7CI,8CI) , Benzene, lithium complex , 1,3-Dilithiobenzene , 1,3-Phenylene dilithium and m-Dilithiobenzene .