4-BROMOBENZYLZINC BROMIDE;4-BROMOBENZYLZINC BROMIDE, 0.5M SOLUTION IN TETRAHYDROFURAN;4-bromobenzylzinc bromide solution;4-Bromobenzylzinc bromide solution 0.5 in THF;4-BroMobenzylzinc broMide, 0.5M in THF, packaged under Argon in resealable CheMSeal^t bottles