Homemade Renilla Luciferase Substrate? - How to make Renilla Luciferase Substrate (Oct/13/2010 )

Dear Friends,

Does anyone know to make "homemade" Renilla Luciferase Substrate? I used to buy it from Promega, but it has turned out to be expensive in a long run...

I would be happy for all kind of tips/hints how to make it?

Best,

Mr. Luciferase

you can probably buy some coelenterazine powder with less money