5-8-5 Ring System (IMAGE) Florida State University Caption FSU scientists have devised a strategy for synthesizing carbocyclic 5-8-5 fused ring systems, a molecular structure with potentially broad therapeutic potential. Credit Benjamin Moten Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.