N,N'-[(6-Aminohexyl)carbonimidoyl]bis-carbamic Acid C,C'-Bis(1,1-dimethylethyl) Ester is an intermediate in the synthesis of Chlorhexidine Digluconate Impurity N-d4 Hydrochloride (C377662). Chlorhexidine Digluconate Impurity N-d4 Hydrochloride, is labelled Chlorhexidine Digluconate Impurity N (C377660), which is a degradation product found in chlorhexidine digluconate solution.