CAS 4301-14-8 appears in our catalog under these names: Ethynylmagnesium bromide solution, Ethynylmagnesium bromide, 0.5M solution in THF, AcroSeal®, Ethynylmagnesium bromide solution, 0.5M. Offered by: GLPBio, Thermo Scientific (Acros), Sigma-Aldrich. Available pack sizes: 100ml, 1l, 500ml, 800ml.