Synthetics
Diacetyl smells like a bright, multifaceted blend of jasmine, cypress, lavender, citronella, champaca, fir, and orris.
Mosciano, Gerard P&F 16, No. 6, 43, (1991): Sweet, creamy, buttery, pungent, with a pungent caramellic nuance
Luebke, William tgsc, (1989): Strong butter sweet creamy pungent caramel
Moellhausen: Creamy, fat, vanilla