Benzylbis(2-hydroxypropyl)amine-d12 is the labelled form of Benzylbis(2-hydroxypropyl)amine and is an intermediate in the synthesis of d12 labelled N-Nitrosobis(2-hydroxypropyl)amine (N525227). Unlabelled N-Nitrosobis(2-hydroxypropyl)amine exhibits carcinogenicity in duct cells.