Showing structure for 17'-hydroxy-2',3,4,8',10',14',18'-heptamethyl-5-oxo-5'-oxaspiro[furan-2,6'-pentacyclo[11.8.0.0²,¹⁰.0⁴,⁹.0¹⁴,¹⁹]henicosan]-1'(13')-ene-18'-carbaldehyde