Heading 3302 covers mixtures of odoriferous substances put up as raw materials for industrial or beverage manufacturing — they are not retail-ready consumer products. Finished perfumes and toilet waters presented for direct consumer use fall under heading 3303. The key distinction is whether the product is an intermediate input sold to a manufacturer or a finished article sold to an end user.

Yes — flavor compounds intended for use in food or beverage manufacturing are subject to FDA oversight as food additives or GRAS (generally recognized as safe) substances. Importers should be prepared to provide documentation of the intended food use and the regulatory status of the constituent ingredients. Prior notice to FDA is required for food-use shipments.