AKA The Food Network
|Aldrich's Organoleptic Properties Index|
There is only one chemical used to make the flavor of bacon.
This is "bacon", surrounded by all the other flavors that use that same chemical-flavor.
To put it another way: the chemical that is used to make 'bacon flavor' is also used to make 'vanilla', 'jasmine', and 'clove', among others (including whiskey, which for some reason is not showing up).
Take a minute to play with this network graph - a compendium of flavors and fragrances and the relationships between them, using Aldrich's catalog of over 1000 chemicals.
(check out a youtube tutorial on how to use the network graphs if it seems too confusing)
Aldrich's Organoleptic Properties Index