The expanded universe kit provides a deep dive into more complex and rare odors that greatly shape our natural world from melons and tropical fruit, to green grass, to whiskey or aged spirits, and more. The kit contains mostly natural isolates with a few "nature identical" synthetic compounds ( all appropriate notes and distinctions provided in accompanying PDF ), all of which are striking in their own way. We feel this is about as far as you can go without deep specificity, or suggesting people assess dangerous natural compounds better known for their roles as things like industrial solvents.

The Expanded Universe Kit introduces:

10 compounds in the Ketone, Aldehydes, and Phenolics group such as the m-Cresol and Anisealdehyde ( a very different "anisic" compound to explore ). 10 compounds in the Esters and Lactones group such as Isoamyl Acetate, Sotolon, and b-methyl-y-octalactone - the so-called Whiskey Lactone. 9 compounds in the "Other Aroma Compounds" group such as Octanol ( first provided in the "Beloved" expansion kit ), Coumarin ( first provided in the "Creator" expansion kit ) and PEA, and 1 new Black ( sulfuric ) category compound, and a surprise as well for pre-order buyers.