SMILES: C1=CC2=C3C(=C1)C=CC3=CC=C2
Description: The molecule is a ortho- and peri-fused tricyclic hydrocarbon that occurs in coal tar. It is an ortho- and peri-fused polycyclic arene, a member of acenaphthylenes and an ortho- and peri-fused tricyclic hydrocarbon.