Showing structure for 5-(1-hydroxyethyl)-10,15-dimethyl-3,6,13,17-tetraoxahexacyclo[8.7.1.0²,⁴.0⁴,⁹.0¹²,¹⁴.0¹⁵,¹⁸]octadec-8-ene-7,16-dione