The molecule consists of a fused bicyclic system where a benzene ring is joined to a nine-membered ring (S1-C2-C3-C4-C5-C6-C7-C8-C9). The nine-membered ring features double bonds between C2-C3, C4-C5, and C6-C7. Notably, the benzene ring shares atoms C8 and C9 with the nine-membered ring, and methyl groups are attached at C5 and C7.