.delta.-Undecalactone .gamma.-Heptyl-.gamma.-butyrolactone .gamma.-Heptylbutyrolactone .gamma.-Undecalactone .gamma.-Undecalatone .gamma.-Undecanolactone .gamma.-Undecanolide .gamma.-n-Heptylbutyrolactone 1,4-Undecanolide 104-67-6 2(3H)-Furanone, 5-heptyldihydro- 4-Hydroxyundecanoic acid lactone 4-Hydroxyundecanoic acid, .gamma.-lactone 4-Undecanolide Aldehyde C-14 Aldehyde C-14 peach NSC76413 Peach aldehyde Peach lactone Persicol Undecanoic acid, 4-hydroxy-, .gamma.-lactone WLN: T5OVTJ E7