CAS No 109946-35-2 , 3-Furanpropanoic acid,2,5-dihydro-b-hydroxy-4-methyl-2,5-dioxo-,(1R,2S,3R,6S,7S,10R)-10-[(2S,3S,6R,8S,9R)-3,9-dimethyl-8-[(3S)-3-methyl-4-oxopentyl]-1,7-dioxaspiro[5.5]undec-2-yl]-3,7-dihydroxy-2-methoxy-6-methyl-1-(1-methylethyl)-5-oxoundecylester, (bR)-