CAS 16733-97-4 appears in our catalog under these names: LITHIUM CYCLOPENTADIENYLIDE, 97%, LITHIUM CYCLOPENTADIENIDE, 97%, Cyclopentadienyllithium, Lithium cyclopentadienide, Lithium, 2,4-cyclopentadien-1-yl-, 95%+,RG. Offered by: Sigma-Aldrich, GLPBio, Biosynth, Fluorochem. Available pack sizes: 25G, 5G, 1g, 50g, 100g.