The Magnesium,bromo(1-methylethyl)-, with the CAS registry number 920-39-8 and EINECS registry number 213-056-8, has the systematic name of bromo(propan-2-yl)magnesium. It is a kind of clear dark brown or dark gray solution, and belongs to the following product categories: Classes of Metal Compounds; Grignard Reagents; Grignard Reagents & Alkyl Metals; Mg (Magnesium) Compounds; Synthetic Organic Chemistry; Typical Metal Compounds. And the molecular formula of the chemical is C₃H₇BrMg.

The characteristics of Magnesium,bromo(1-methylethyl)- are as followings: (1)H-Bond Donor 0; (2)H-Bond Acceptor 2; (3)Rotatable Bond Count 0; (4)Exact Mass 145.958155; (5)MonoIsotopic Mass 145.958155; (6)Topological Polar Surface Area 0; (7)Heavy Atom Count 5; (8)Formal Charge 0; (9)Complexity 6.9; (10)Isotope Atom Count 0; (11)Defined Atom StereoCenter Count 0; (12)Undefined Atom StereoCenter Count 0; (13)Defined Bond StereoCenter Count 0; (14)Undefined Bond StereoCenter Count 0; (15)Covalently-Bonded Unit Count 3.

Uses of Magnesium,bromo(1-methylethyl)-: It can react with 1-phenyl-ethanone to produce 3-methyl-2-phenyl-butan-2-ol. This reaction will need reagent diethyl ether. The reaction time is 0.5 hours with temperature of 20°C, and the yield is about 65%.      

You should be cautious while dealing with this chemical. It is a kind of highly flammale chemical which may form explosive peroxides, and may cause burns. Therefore, you had better take the following instructions: Keep away from sources of ignition - No smoking; Wear suitable protective clothing, gloves and eye/face protection; In case of contacting with eyes, rinse immediately with plenty of water and seek medical advice; Take off immediately all contaminated clothing. 

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: CC(C)[Mg]Br
(2)InChI: InChI=1/C3H7.BrH.Mg/c1-3-2;;/h3H,1-2H3;1H;/q;;+1/p-1/rC3H7BrMg/c1-3(2)5-4/h3H,1-2H3
(3)InChIKey: UCJIVFREPMUZDC-RCMQMYSXAA