butoxy,dihydro,pyran,carboxylic,butyl,ester,2h-pyran,2h-pyran-2-carboxylic,dihydro-2h-pyran
2H-pyran
62950-24-74H-Furo[3,2-c]pyran-4-one,3-[4-(acetyloxy)-2-oxo-2H-pyran-6-yl]-6-[2-[4-(acetyloxy)phenyl]ethenyl]-2-[3,4-bis(acetyloxy)phenyl]-2,3-dihydro-