Showing structure for 4',5',7',8',17'-pentahydroxy-14',18'-dimethyl-3',10'-dioxaspiro[oxirane-2,6'-pentacyclo[9.8.0.0¹,⁷.0⁴,¹⁹.0¹³,¹⁸]nonadecan]-14'-ene-9',16'-dione