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Amines REACH

Diethylpropargylamine

CAS Number
4079-68-9
EC Number
223-804-5
Chemical Formula
C7H13N
Molecular Weight
111.18 g/mol

Description

Diethylpropargylamine (CAS 4079-68-9 ), also known as 3-(Diethylamino)propyne, is a tertiary propargylic amine used as a reactive building block and polymerization initiator in specialty chemical synthesis. Its terminal alkyne group makes it a practical handle for constructing more complex molecular architectures in pharmaceutical and polymer research. In pharmaceutical synthesis, it serves as an intermediate for drug candidates. This is particularly useful in CNS and enzyme-inhibitor programs. The terminal alkyne functionality supports copper-catalyzed azide-alkyne cycloaddition click chemistry, enabling efficient conjugation steps in medicinal chemistry. In polymer science, it functions as an initiator or co-monomer for synthesizing stimuli-responsive or functionalized polymers where pendant amine and alkyne groups are both required for the final application. Biotechnology researchers use it to introduce clickable handles onto biomolecules for labeling, immobilization, or probe development. Diethylpropargylamine is supplied as a liquid for various industrial uses. It is available primarily at research and development scales, with high-purity grades suited to pharmaceutical intermediate and life sciences applications. Bulk quantities for scale-up synthesis can be sourced easily. Contact us for supply of Diethylpropargylamine Request Quote

Other Names (Synonyms)

2-Propyn-1-amine, N,N-diethyl- | N,N-Diethyl-2-propynylamine | 3-(Diethylamino)propyne | 3-(N,N-Diethylamino)propyne | 1-N,N-Diethylamino-2-propyne | 2-PROPYNYLAMINE, N,N-DIETHYL- | N,N-Diethyl-2-propyn-1-amine | N,N-Diethylpropargylamine

Key Technical Features

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

Physical Properties

Melting Point157-161°C
Boiling Point120-121 °C
Density0.8042 g/cm³ @ Temp: 25 °C
Flash Point156°C
ColorColorless to Light orange to Yellow
Formclear liquid
Water SolubilitySoluble in acid. Insoluble in water.
Vapor Pressure14.6hPa at 20℃
Refractive Indexn 20/D 1.434
Log P1.5 at 23℃

Safety & Handling

Danger
GHS02· FlammableGHS05· CorrosiveGHS06· ToxicGHS07· Irritant

Hazard Statements

H225Highly Flammable liquid and vapor
H226Flammable liquid and vapor
H302Harmful if swallowed
H311Toxic in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H331Toxic if inhaled
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233Keep container tightly closed.
P240Ground and bond container and receiving equipment.
P241Use explosion-proof equipment.
P242Use non-sparking tools.
P243Take action to prevent static discharges.
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.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
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.
P317If eye irritation persists: Get medical advice/attention. Get 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.
P235Store in a well-ventilated place. Keep cool.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P353IF ON SKIN (or hair): 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.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29211990
UN Number2733
ADR Class3
Packing GroupII
WGK (Germany)3