Bis(cyclopentadienyl)zirconium(IV) dichloride, Di(cyclopentadienyl)zirconium(IV) dichloride, Dichlorozirconocene, Dichlorodicyclopentadienylzirconium, Zirconium, dichlorobis(η5-2,4-cyclopentadien-1-yl)-, Zirconium, dichlorobis(h5-2,4-cyclopentadien-1-yl)-, Bis(cyclopentadienyl)zirconium Dichloride, Zirconocene dichloride, Zirconium dicyclopentadiene dichloride