This chemical is called Magnesium, bromo(5-fluoro-2-methylphenyl)-, and its systematic name is bromo(5-fluoro-2-methylphenyl)magnesium. With the CAS registry number of 186496-59-3, its product categories are Aryl; Grignard Reagents;Organometallic Reagents. It's stable at normal temperature and pressure. However, it should be sealed in the cool and dry place, away from the water, acids, alcohols, oxidizers, heat and fire. Keep it at refrigeration temperature 4 º C, with protected gas Nitrogen.

Other characteristics of the Magnesium, bromo(5-fluoro-2-methylphenyl)- 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. It reacts violently with water and liberates extremely flammable gas, even forms explosive peroxides. Keep it away from the sources of ignition.

You can still convert the following datas into molecular structure: 
1.SMILES: Cc1ccc(F)cc1[Mg]Br
2.InChI: InChI=1/C7H6F.BrH.Mg/c1-6-2-4-7(8)5-3-6;;/h2,4-5H,1H3;1H;/q;;+1/p-1/rC7H6BrFMg/c1-5-2-3-6(9)4-7(5)10-8/h2-4H,1H3
3.InChIKey: XKMSJPVAJJFYFU-AMADOKFJAE