Formula: C22H18O6 | Mol. Weight: 378.40 g/mol
IUPAC: [(1R,4S,4aS,8aS)-4-hydroxy-5-oxospiro[1,4,4a,8a-tetrahydronaphthalene-8,3'-2,4-dioxatricyclo[7.3.1.05,13]trideca-1(12),5,7,9(13),10-pentaene]-1-yl] acetate
CC(=O)OC1C=CC(C2C1C3(C=CC2=O)OC4=CC=CC5=C4C(=CC=C5)O3)O