Synthetics
Tetrahydrofurfuryl acetate smells like a sweet, fruity flavoring ingredient
Mosciano, Gerard P&F 19, No. 2, 55, (1994): Sweet, fruity, brown, rummy, slightly etherial with caramel nuance
Luebke, William tgsc, (2021): Fruity ethereal rummy caramel brown cooked cognac tequila caramellic nutty
Bedoukian Research: Sweet fruity brown rum ether caramel