Nuka-Cola Clear formula

It's a quest item for Finding the Formula miniquest in Fallout 3.

Information
The formula describes how to make Clear Nuka-Cola. This type of Nuka-Cola was invented right before the Great War, but never made it to the mass production.

In Fallout 3 it is searched by a gang, called Sudden-Death Overtime for unknown reasons. Anyway the formula is located in Nuka-Cola Plant and the gang that wants it is located near Red Racer Factory

You can give them the recipe for an initial 250 caps or pass a speech challenge to raise it to 400.