Synonyms: dichlorobis[(1,2,3,4,5-eta)-1-methyl-2,4-cyclopentadien-1-yl]-zirconiu;BIS(METHYLCYCLOPENTADIENYL)ZIRCONIUM(IV) DICHLORIDE;Bis(methylcyclopentadienyl)zirkoniumdichlorid;Zirconium, dichlorobis[(1,2,3,4,5-eta)-1-methyl-2,4-cyclopentadien-1-yl]-;dichlorozirconium(2+)ato(4-) 3-methylcyclopenta-1,4-dienido(4-) 4-methylcyclopenta-1,4-dienido(4-);dichlorozirconium; 2-methylcyclopenta-1,3-diene