2H-Pyran-2-one, 5-(acetyloxy)-5,6-dihydro-6-(3-methyloxiranyl)- 30387-51-0 5,6-Dihydro-6-(3-methyl-2-oxiranyl)-2-oxo-2H-pyran-5-yl acetat 6,7-Epoxy-4,5-dihydroxy-2-octenoic acid delta-lactone acetate 6-(1,2-Epoxypropyl)-5,6-dihydro-5-hydroxy-2H-pyran-2-one acetate ASPERLIN Asperlin [USAN] NSC-93158 U 13933 U-13,933