15492-52-1 NSC 177672 Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)ytterbium(III) Tris(dipivaloylmethanato)ytterbium Tris(dipivaloylmethanato)ytterbium(III) Ytterbium, tris(2,2,6,6-tetramethyl-3,5-heptanedionato)- Ytterbium, tris(2,2,6,6-tetramethyl-3,5-heptanedionato-O,O')-, (OC-6-11)- (9CI) Ytterbium, tris(2,2,6,6-tetramethyl-3,5-heptanedionato-kappaO,kappaO')-, (OC-6-11)-