Triethylamine
Triethylamine (CAS: 121-44-8), a clear, volatile liquid with a strong ammonia-like odour, is a vital organic compound with the linear formula (C2H5)3N and a molecular weight of 101.19 g/mol. It serves as a crucial base and catalyst in various chemical syntheses. Its applications span organic chemistry, particularly in dehydrohalogenation reactions and as an acid scavenger. Available from Tech Serve Solutions in grades suitable for demanding analytical applications.
- Synonyms
- N,N-DiethylethanamineTriethylamineTEAEt3N

Organic Synthesis Reagent
Triethylamine is widely employed as a base and catalyst in organic synthesis, facilitating reactions such as dehydrohalogenation and acting as an acid scavenger to neutralise by-products like HCl. Its moderate basicity and solubility in organic solvents make it a versatile choice for numerous transformations.
Amino Acid Analysis
This compound is used as a reagent in amino acid analysis, specifically in the derivatisation of amino acids to enhance their detectability in chromatographic methods. Its role is critical in biochemical research and quality control processes.
Catalyst in Polymerisation
Triethylamine can function as a catalyst in certain polymerisation reactions. It accelerates the formation of polymers by promoting the necessary chemical steps, contributing to material science advancements.
Acid Scavenger
In reactions where acidic by-products are formed, triethylamine effectively neutralises them, preventing unwanted side reactions or degradation of sensitive products. This property is invaluable in the synthesis of pharmaceuticals and fine chemicals.
| Molecular weight | 101.19 |
|---|---|
| Linear formula | (C2H5)3N |
| Assay | ≥99.5% (GC) |
| Grade | for amino acid analysis |
| Boiling point | 88.8 °C(lit.) |
| Density | 0.726 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.401(lit.) |
| Melting point | −115 °C(lit.) |
| Vapour pressure | 51.75 mmHg (20 °C) |
| Vapour density | 3.5 (vs air) |
| Autoignition temp | 593 °F |
| Impurities tested | ≤0.1% water |



Hazard statements
- H225Highly flammable liquid and vapour
- H302Harmful if swallowed
- H311Toxic in contact with skin
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -15 °C / 5 °F |
| Transport (UN / ADR) | UN 1296 8(3) / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-20/21/22-35 |
| Safety statements (S) | 3-16-26-29-36/37/39-45-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 8 % |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Triethylamine used for?
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Triethylamine is primarily used as a base and catalyst in organic synthesis, an acid scavenger, and a reagent in amino acid analysis. It facilitates reactions like dehydrohalogenation and is employed in the production of pharmaceuticals and fine chemicals.
What are the CAS number and formula for Triethylamine?
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The CAS number for Triethylamine is 121-44-8, and its linear formula is (C2H5)3N.
What grade and purity does Tech Serve Solutions supply for Triethylamine?
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Tech Serve Solutions supplies Triethylamine with an assay of ≥99.5% (GC) in a grade suitable for amino acid analysis.
How should Triethylamine be handled safely?
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Triethylamine is a highly flammable liquid and vapour (H225), is harmful if swallowed (H302), toxic in contact with skin and if inhaled (H311 + H331), causes severe skin burns and eye damage (H314), and may cause respiratory irritation (H335). Always handle with appropriate personal protective equipment, including chemical-resistant gloves, eye protection, and respiratory protection in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling instructions.
How is Triethylamine packaged and shipped?
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Triethylamine is shipped as a regulated hazardous material (UN 1296, Class 8, Subsidiary Hazard 3, Packing Group II). TSS adheres to all international shipping regulations for hazardous chemicals.
How can I request a quote or sample for Triethylamine?
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To request a quote or sample, please contact our sales team through the website or by calling us directly. Provide the product name, CAS number, and desired quantity.
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