Dipropylenetriamine
Description
Dipropylenetriamine (CAS 56-18-8), also known as DPTA, is a triamine compound used as a building block and intermediate in pharmaceutical and specialty chemical synthesis.
Its three reactive amine groups make it a functional starting material for constructing more complex molecular architectures in drug development and bioconjugation workflows.
In pharmaceutical synthesis, this compound serves as an intermediate for producing active pharmaceutical ingredients and drug candidates requiring polyamine scaffolds.
Biotech and life science researchers use it in linker chemistry and conjugation platforms, where controlled amine reactivity is critical to payload attachment or crosslinking efficiency.
It also finds use in the preparation of chelating agents and polyamine derivatives applied in diagnostic and therapeutic research contexts for various medical applications.
Specialty chemical manufacturers utilize it as a precursor for curing agents, epoxy hardeners, and nitrogen-rich polymer additives in adjacent industrial applications.
The material is available as a liquid at standard commercial purities, with high-purity grades supplied for pharmaceutical and research applications for global clients.
Buyers should confirm purity specifications and documentation requirements, including CoA and residual solvent data, with the supplier prior to procurement of the material.
Physical Properties
| Melting Point | -14 °C |
| Boiling Point | 120 °C @ Press: 6 Torr |
| Density | 0.958 g/cm³ |
| Flash Point | 245 °F |
| Appearance | colourless to yellow liquid |
| Color | Colorless to Almost colorless |
| Form | clear liquid |
| Water Solubility | Completely miscible in water |
| Refractive Index | n 20/D 1.481(lit.) |
| Log P | -0.826 (est) |
Safety & Handling (Learn More)
Trade & Regulatory
| HS Code | 29252900 |
| UN Number | 2269 |
| ADR Class | 8 |
| Packing Group | III |
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 2 |
Documentation
Other Names
N-3-aminopropyl-1,3-diaminopropane|N-(3-aminopropyl)propane-1,3-diamine|N-(3-aminopropyl)-1,3-propanediamine|Bis(3-aminopropyl)amine|4-azaheptane-1,7-diamine|3,3'-iminobis(propylamine)|3,3-diaminodipropylamine|1,7-diamino-4-azaheptane
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