Synthetics
Aldehyde c-7 heptanal smells like a powerful, aldehydic, caprylic fragrance with herbaceous, fermented-fruity and winey notes, slightly reminiscent of rancidity.
Luebke, William tgsc, (1984): Fresh aldehydic fatty green herbal wine-lee ozone
Bedoukian Research: Fresh, green, citrus odor
Used in aldehydic accords and florals.
Moellhausen: Fruity, herbaceous, aldehyde
Alfrebro: Very strong, fatty, harsh, pungent