Any factor, trait, or condition that can exist in differing amounts or types.
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(1S*,6S*,7S*,8S*)-6-benzoyloxymethyl-7,8-isopropylidenedioxy-3,9-dioxabicyclo<4.2.1>nonan-4-one
2,6-diethyl-4-hydroxy-5-methyl-1,3-dioxane