Synthetics
Gamma octalactone smells like a sweet, creamy, coconut with a slightly fatty, oily aroma.
Mosciano, Gerard P&F 21, No. 1, 33, (1996): Sweet, creamy, coconut, milky, soapy, coumarin, fruity, peach and apricot
Luebke, William tgsc, (1998): Sweet coconut waxy creamy tonka dairy fatty
PerfumersWorld: Sweet creamy dairy fatty oily coconut aromatic sweet creamy coconut
Pell Wall Perfumes: Sweet, coconut, waxy, creamy, coumarin, milky, rich
According to arctander: “this lactone is used in perfumery in heavy floral fragrances such as gardenia, tuberose, hyacinth, and even in lily. it serves as an interesting modifier or substitute for coumarin in herbaceous fragrance types, fougeres, lavenders, etc. in spite of its comparatively low boiling point, it has an excellent tenacity.”