4-CYANOBUTYLZINC BROMIDE;4-CYANOBUTYLZINC BROMIDE, 0.5M SOLUTIONI N TETRAHYDROFURAN;4-cyanobutylzinc bromide solution;4-Cyanobutylzinc bromide solution 0.5 in THF;4-Cyanobutylzinc broMide, 0.5M in THF, packaged under Argon in resealable CheMSeal^t bottles