What is the formula for 2-bromomethylpropane ?
If that is 2-bromo-2-methylpropane here it is.
https://www.google.com/search?q=2-bromo-2-methylpropane&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb
https://www.google.com/search?q=2-bromo-2-methylpropane&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb