This document lists various Grignard reagents along with their chemical structures and CAS registry numbers. Grignard reagents are organomagnesium compounds that are important reagents in organic synthesis. Some examples listed include phenylmagnesium bromide, isobutylmagnesium bromide, methylmagnesium iodide, ethylmagnesium bromide, allylmagnesium bromide, isopropylmagnesium bromide, and benzylmagnesium bromide. Contact information is also provided for the registered office and factory location of the company producing these Grignard reagents.