Synthetics
Carvacrol FCC smells like a classic heart or middle note in a fragrance.
Mosciano, Gerard P&F 23, No. 1, 33, (1998): Spicy, cooling, thymol-like, herbal and camphoreous with smoky nuances
Luebke, William tgsc, (1989): Spice woody camphor thymol
Moellhausen: Phenolic, herbaceous, thyme
Lluch Essence: Camphoraceous, woody, spicy