The molecule is a tetracyclic diterpenoid with formula C20H24O7, originally isolated from the roots and leaves of Tripterygium wilfordii. It has a role as a plant metabolite, a rat metabolite and a xenobiotic metabolite. It is a gamma-lactone, an epoxide, a secondary alcohol, a tetracyclic diterpenoid, a primary alcohol and a diol.
(1S,2S,4S,5S,7R,8R,9S,11S,13S)-8-hydroxy-7-[(2S)-1-hydroxypropan-2-yl]-1-methyl-3,6,10,16-tetraoxaheptacyclo[11.7.0.02,4.02,9.05,7.09,11.014,18]icos-14(18)-en-17-one