organic compounds
In the title compound, C20H22O8·6H2O, the asymmetric unit contains one half-molecule with the other half generated by a crystallographic twofold axis of symmetry. It was extracted from the leaves of Prinsepia utilis Royle and displays powerful anti-oxidant activity.
organic compounds
The title compound, C20H22N8O2S2, contains a center of inversion at the mid-point of the central C-C bond. The mean planes of the phenyl and the 1H-tetrazol-5-ylsulfanyl rings make a dihedral angle of 53.95 (16)°.