Norbornene diisocyanate

bicyclo[2.2.1]heptane,bis(siocyanatomethyl)

2,5(oder 2,6)-Bis(isocyanatmethyl)-bicyclo-[2.2.1]-heptan

2, 5(or 2, 6)-bis(iso-cyanatomethyl)-Bicyclo[2.2.1]heptane