1,1'-((3-(dimethylamino)propyl)imino)bis(2-propanol)

N-(3-Dimethylaminopropyl)-N,N-diisopropanolamine, also identified by CAS 63469-23-8 and commonly abbreviated as DMAPDA, is a tertiary amine diol used across industrial and personal care formulations. It combines pH-buffering capacity with corrosion inhibition and chelating activity, making it a functional additive where multiple performance roles are needed in a single ingredient for various applications.

In metalworking and industrial lubricants, it acts as a corrosion inhibitor and pH stabilizer in water-based cutting fluids and coolants, extending fluid service life and maintaining system stability. Coatings and adhesive formulators use it to neutralize acidic resins and improve adhesion on metal substrates. Water treatment applications leverage its chelating function to sequester metal ions effectively.

In personal care, it serves as a pH adjuster and neutralizing agent in rinse-off and leave-on formulations where amine-based buffering is preferred over inorganic alkalis for better compatibility. The product is supplied as a clear to slightly yellow liquid. Technical grade is the standard commercial offering, with purity specifications typically in the 98–99% range confirmed by GC analysis.

Packaging options generally include drums and IBC containers suited to industrial procurement volumes. This ensures safe handling and efficient logistics for large-scale manufacturing and distribution needs.