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Dipropylenetriamine

CAS Number
56-18-8
EC Number
200-261-2
Chemical Formula
C6H17N3
Molecular Weight
131.22 g/mol

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. Contact us for supply of Dipropylenetriamine Request Quote

Other Names (Synonyms)

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

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-14 °C
Boiling Point120 °C @ Press: 6 Torr
Density0.958 g/cm³
Flash Point245 °F
Appearancecolourless to yellow liquid
ColorColorless to Almost colorless
Formclear liquid
Water SolubilityCompletely miscible in water
Refractive Indexn 20/D 1.481(lit.)
Log P-0.826 (est)

Safety & Handling

Danger
GHS05· CorrosiveGHS06· ToxicGHS07· IrritantGHS08· Health Hazard

Hazard Statements

H227Combustible liquid
H302Harmful if swallowed
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H317May cause an allergic skin reaction
H318Causes serious eye damage
H330Fatal if inhaled
H341Suspected of causing genetic defects
H373May causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29252900
UN Number2269
ADR Class8
Packing GroupIII
Storage Class6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)2