Guaiacol concentration - (Mar/04/2009 )

I want to prepare a 0.4mM guaiacol solution. The guaiacol solution i received from Merck is 99%, 1.1Kg/L . however the molarity/concentration is not indicated. how do i go about preparing my solution?

Thanks.

just found out the answer......Molarity of solution is ..(99×1.11×10)/124.14(M.W)