CAS 17978-77-7 appears in our catalog under these names: Tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)praseodymium(iii), 95%, Tris(6，6，7，7，8，8，8–heptafluoro–2，2–dimethyl–3，5–octanedionato)praseodymium(III), Tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)praseodymium(III) [NMR Shift Reagent], >97.0%(T), Praseodymium-fod, 99%. Offered by: Combi-blocks, GLPBio, TCI, Chemat. Available pack sizes: 1g, 250mg.