Synonyms: 1,3-Cyclopentadiene,1,2,3,4,5-pentamethyl-, ruthenium complex;Chloro(pentamethylcyclopentadienyl)ruthenium tetramer; Chloro(h5-pentamethylcyclopentadienyl)rutheniumtetramer; Tetra-m3-chlorotetrakis((h5-pentamethylcyclopentadienyl)ruthenium);Tetrachlorotetrakis(pentamethylcyclopentadienyl)tetraruthenium; Tetrachlorotetrakis(h5-pentamethylcyclopentadienyl)tetraruthenium;Tetrakis((m3-chloro)(h5-pentamethylcyclopentadienyl)ruthenium);Tetrakis(chloro(h5-pentamethylcyclopentadienyl)ruthenium);Tetrakis(m3-chloro)tetrakis((h5-pentamethylcyclopentadienyl)ruthenium);Tetrakis[m-chloro(h5-pentamethylcyclopentadienyl)ruthenium]