(+)-Ipomeamarone (+)-Ngaione (2S,5R)-(+)-1-(5-(3-Furyl)tetrahydro-2-methyl-2-furyl)-4-methyl-2-pentanone 11033-12-8 2-Pentanone, 1-(5-(3-furyl)tetrahydro-2-methyl-2-furyl)-4-methyl-, (2S,5R)-(+)- 2-Pentanone, 4-methyl-1-(2,3,4,5-tetrahydro-5-methyl(2,3'-bifuran)-5-yl)-, (2R-cis)- (9CI) 494-23-5 Ipomeamarone, (+)- NSC 256944 Ngaione, (+)-