Synonyms: 19-Oxo-14-hydroxy-3β,2α-[[(2S,3S,4R,5S,6R)-tetrahydro-3,4,5-trihydroxy-6-methyl-2H-pyran-3,2-diyl]bis(oxy)]-5α-card-20(22)-enolide;3β,2α-[[(2S,3S,4R,5S,6R)-Tetrahydro-3,4,5-trihydroxy-6-methyl-2H-pyran-2,3-diyl]bisoxy]-14-hydroxy-19-oxo-5α-card-20(22)-enolide;Calotoxin