SEARCH Articles Figures Tables Fused Polycyclic Compounds Fused compounds Fused polycyclic hydrocarbons Fused rings Fused-ring compounds More Than Nonalternant hydrocarbons Polycyclic Hydrocarbons, Nonalternant Compounds with Five Fused Rings Polycyclic Hydrocarbons, Nonalternant Compounds with Fused Rings Rings, hydrocarbons