Visnadina Synonym: [(9R,10R)-10-acetyloxy-8,8-dimethyl-2-oxo-9,10-dihydropyrano[2,3-f]chromen-9-yl] (2R)-2-methylbutanoate Chemical Formula: C21H24O7 CAS number: 477-32-7 DOI: 10.1055/s-2006-957660