Triethylenetetramine

Triethylenetetramine (CAS 112-24-3), commonly abbreviated as TETA or TRIEN, is a polyamine compound belonging to the ethyleneamine family. It carries no E-code designation and is commercially supplied as a 95–98% pure material, with linear, branched, and cyclic isomers present as minor impurities.

In epoxy resin systems, TETA functions as a curing agent by reacting with epoxide groups to form cross-linked polymer networks, directly influencing mechanical strength and chemical resistance. It also serves as a pH buffer and chelating agent in textile and leather processing, where controlled alkalinity and metal ion sequestration are required during dyeing and tanning operations.

TETA is available in technical grade (95–98%) and is subject to REACH registration requirements within the EU. It is handled under HS code 29212900 and typically supplied in drums or IBC containers. Procurement teams should verify SDS compliance and confirm grade suitability against application-specific purity thresholds before ordering.