B 2407 (OTTO0 n-Butyldiethanolamine, 97% Cas 102-79-4 - used in the synthesis of the following complexes (Hdnba = 3,5-dinitrobenzoic acid, Hpta = p-toluic acid, H2tpa = terephthalic acid) new mononuclear [Cu(Hbdea)2]·2Hdnba , dinuclear [Cu2(μ-Hbdea)2(N3)2] and [Cu2(μ-Hbdea)2(pta)2]·2H2O.