CAS No 135257-48-6 , 2-Undecenoic acid,7-(acetyloxy)-11-[(2S,4S,6S,8S,10R)-8-[(1S,2E,6S)-1-hydroxy-8-methoxy-2,6-dimethyl-8-oxo-2-octen-1-yl]-4,10-dimethyl-1,7-dioxaspiro[5.5]undec-2-yl]-2,6,10-trimethyl-8,11-bis(3-methyl-1-oxobutoxy)-5-(1-oxopropoxy)-,methyl ester, (2E,5S,6S,7R,8R,10S,11S)-