"prepared binders for foundry moulds or cores;chem - un: 2735 amines, liquid, corrosive, n .o.s. (contains : 1,2-diaminocyclohexane, hexamethylenediamine) class : 8 pg : ii marine pollutant : no dytek(r) 1,2-diaminocyclohexanecrude country of origin: us export authority : nlr hts: 382499 noeei 30.3