CAS 15522-69-7 appears in our catalog under these names: Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)dysprosium(iii), 95%, Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)dysprosium(III), 98%. Offered by: Combi-blocks, Chemat Brand. Available pack sizes: 500mg, 2g, on request.