(1S-(1alpha,4aalpha,5alpha,7alpha,7aalpha))-1,4a,5,6,7,7a-Hexahydro-4a,5,7-trihydroxy-7-methylcyclopenta(c)pyran-1-yl beta-D-glucopyranoside 6926-08-5 EINECS 230-050-0 Harpagide