Overview
Trisaminoethylamine (CAS 4097-89-6 ), commercially known as TREN, is a tetradentate triamine used across polymer chemistry, metal treatment, and specialty formulation.
Its four nitrogen donor sites make it effective for chelating metal ions and initiating controlled polymerization reactions in various industrial and laboratory settings.
In coatings and adhesives, TREN functions as a curing agent and cross-linker for epoxy systems, contributing to network density and adhesion performance in demanding industrial formulations.
Water treatment operations use it as a chelating agent to sequester heavy metal ions, preventing scale formation and equipment fouling in process water circuits during operation.
In polymer manufacturing, TREN serves as a ligand in atom transfer radical polymerization (ATRP), enabling precise molecular weight control in specialty plastics and elastomers.
Lubricant and metalworking fluid formulators incorporate it for its metal-complexing capacity, helping to stabilize formulations and protect metal surfaces under high-load conditions.
Trisaminoethylamine is supplied as a liquid. Technical grade is the standard commercial offering, with purity levels typically specified at 96–99% depending on the application tier.
Buyers sourcing for sensitive polymer or coordination chemistry applications should confirm purity specifications directly with the supplier to ensure the material meets requirements.
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Physical Properties
| Melting Point | -16 °C |
| Boiling Point | 265 °C |
| Density | 0.976 g/mL at 20 °C(lit.) |
| Flash Point | >230 °F |
| Appearance | Colorless liquid |
| Color | Clear yellow |
| Form | saline suspension |
| Water Solubility | Miscible with water. |
| Vapor Pressure | 0.02 mm Hg ( 20 °C) |
| Refractive Index | n 20/D 1.497(lit.) |
Safety & Handling
Danger GHS05 GHS06 GHS07 GHS08 Hazard Statements H301 Toxic if swallowed H302 Harmful if swallowed H310 Fatal in contact with skin H314 Causes severe skin burns and eye damage H318 Causes serious eye damage H370 Causes damage to organs Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29211990 |
| UN Number | 2922 |
| ADR Class | 8 |
| Packing Group | II |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 4097-89-6
- EC Number
- 223-857-4
- Mol. Weight
- 146.23
- HS Code
- 29211990
- Category
- Chelating Agents