Showing structure for 7,13-dihydroxy-3,11,21,22-tetraoxaheptacyclo[10.9.1.1¹,⁶.1¹²,¹⁶.0²,⁴.0¹⁰,²⁴.0²⁰,²³]tetracosa-6(24),7,9,16(23),17,19-hexaene-5,15-dione