303154-78-1

Oxacyclohexadec-13-ene-2,6-dione,7-(3-butenyl)-4,8-dihydroxy-5,5,9,13-tetramethyl-16-[(1E)-1-methyl-2-(2-pyridinyl)ethenyl]-, (4S,7R,8S,9S,16S)-