Pentadecylmagnesium bromide;N-Pentadecylmagnesium bromide;Pentadecylmagnesium bromide, 0.5m soluti on in diethyl ether;N-Pentadecylmagnesium bromide (17% in tetrahydrofuran ca. 0.5mol l);17%Intetrahydrofuran,ca.0.5mol/L;Pentadecylmagnesium bromide solutio