E 1601 (OTTOKEMI) Ethylmagnesium chloride solution 2.0 M In THF Cas 2386-64-3 - used in chemical research. used In Cp2ZrCl2 catalyzed ethylcarboxylation of alkenes using carbon dioxide to corresponding carboxylic acids. In the preparation of cyclobutylmagnesium carbenoids by reacting with 1-chlorocyclobutyl p-tolyl sulfoxides.