Synthetics
Ethyl 2-methylbutyrate has a powerful, diffusive, green-fruity scent reminiscent of apple, pineapple, or unripe plum peels.
Mosciano, Gerard P&F 22, No. 1, 57, (1997): Fruity, estry and berry with fresh tropical nuances
Luebke, William tgsc, (1983): Sharp sweet green apple fruity
PerfumersWorld: Green-fruity apple peel plums ethereal diffusive
FCI SAS: Powerful green fruity fresh
Givaudan: Fruity, green, apple peel, pineapple skin
Ethyl methyl-2-butyrate has a very diffusive fruity effect that serves as a modifier in floral accords or in combination with fruity esters.