CAS No. 2050-08-0
Odour(decreasing): herbal, floral-clover, azalea, green, sweet, chocolate, salicylate
Main Synonyms: iso-Pentyl salicylate, iso-Pentyl-ortho-hydroxybenzoate, “Tresseine”, Trefle, Orchidee, Trefol, iso-Amyl salicylate
Perhaps less familiar than Benzyl Salicylate but probably even more versatile, this can be used in most fragrance types as a blender as well as for its own particular character, it works in everything from Fougères to florals to chocolate accords.
Here is Arctander on the odor and usage: “Sweet herbaceous-green, slightly floral odor. Very tenacious, somewhat woody-earthy, sweet dryout notes. Refined qualities of this ester may show a marked difference in odor, particularly richer in sweetness and floral tones. … Extensively used in floral and non-floral perfume types: Very often in Carnation, Hyacinth, Orchid, Trefle, and almost inevitably in Fougere types. Its low cost and world-wide availability makes it one of the most important perfume chemicals.” [Source]