188295-46-7 2(5H)-Furanone, 3-((15R,16R)-15,16-dihydroxydotrriacontyl)-5-methyl-, (5S)-rel-( )- 2(5H)-Furanone, 3-(15,16-dihydroxydotriacontyl)-5-methyl-, (3(15S*,16S*),5R*)-( )- Tonkinelin