CAS 34767-44-7 appears in our catalog under these names: Cyclopentadienylzirconium trichloride, 96%, Cyclopentadienylzirconium(IV) Trichloride, CYCLOPENTADIENYLZIRCONIUM(IV) TRICHLORI&. Offered by: Combi-blocks, GLPBio, Sigma-Aldrich. Available pack sizes: 250mg, 5g, 1g, 200mg.