2H-PYRAN-2-ONE, 5,6-DIHYDRO-6-PENTYL-, (R)- 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (6R)- 2H-Pyran-2-one, 5,6-dihydro-6-pentyl-, (theta)- 38733-05-0 5,6-Dihydro-6-pentyl-2H-pyran-2-one, (R)- 5-17-09-00218 (Beilstein Handbook Reference) 5-Hydroxy-2-decenoic acid delta-lactone 51154-96-2 BRN 4177048 Cocolactone Massoia lactone Massoilactone