N,N,N',N',2-Pentamethyl-1,3-propanediamine Dihydrochloride-d12 is the isotope labelled analog of N,N,N',N',2-Pentamethyl-1,3-propanediamine Dihydrochloride (P272005); a compound that is used as a corrosion inhibitor for carbon steel and stainless steel in simulated SO2 scrubber solutions.