3,3'-(Iminobis(ethyleneimino))dipropiononitrile 3216-99-7 4,7,10-Triazatridecanedinitrile Bis(cyanoethyl)diethylenetriamine EINECS 221-737-6 Propanenitrile, 3,3'-(iminobis(1,2-ethanediylimino))bis- Propanenitrile, 3,3'-(iminobis(2,1-ethanediylimino))bis-