This chemical is called Magnesium, bromo(3,4-difluorophenyl)-, and its systematic name is bromo-(3,4-difluorophenyl)magnesium. With the molecular formula of C₆H₃BrF₂Mg, its molecular weight is 217.29. The CAS registry number of this chemical is 90897-92-0. Additionally, its product categories are Aryl; Grignard Reagents; Organometallic Reagents. 

Other characteristics of the Magnesium, bromo(3,4-difluorophenyl)- can be summarised as followings: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 1.

When you are using this chemical, please be cautious about it as the following: This chemical causes burns. You should wear suitable protective clothing if you use it. In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice. As it's flammable, keep it away from the sources of ignition.

You can still convert the following datas into molecular structure: 
1.SMILES: Fc1cc([Mg]Br)ccc1F
2.InChI: InChI=1/C6H3F2.BrH.Mg/c7-5-3-1-2-4-6(5)8;;/h1,3-4H;1H;/q;;+1/p-1/rC6H3BrF2Mg/c7-10-4-1-2-5(8)6(9)3-4/h1-3H
3.InChIKey: WZHAVYGMKGPNFN-NSAIUDDGAF