35811-16-6 Acetophenonehelveticosol Acetophenonhelveticosol [German] CARD-20(22)-ENOLIDE, 3-((2,6-DIDEOXY-3,4-O-((1-PHENYLETHYLIDENE)BIS(OXY))-beta-D Card-20(22)-enolide, 3-((2,6-dideoxy-3,4-O-((1-phenylethylidene)bis(oxy))-beta-D-ribo-hexopyranosyl)oxy)-5,14,19-trihydroxy-, (3-beta,5-beta)-