N,N,N′,N′-Tetraethylethylenediamine
N,N,N′,N′-Tetraethylethylenediamine (CAS: 150-77-6) is an organic compound with the formula (C2H5)2NCH2CH2N(C2H5)2 and a molecular weight of 172.31 g/mol. This tertiary diamine functions as a chemical building block. It is particularly noted for its role in the synthesis of amine ligands and its selective lithiation properties in organic chemistry research and development.
- IUPAC
- TEEDA
- Synonyms
- N′-Tetraethylethylenediamine150-77-6(C2H5)2NCH2CH2N(C2H5)2TEEDA

Synthesis of Amine Ligands
N,N,N′,N′-Tetraethylethylenediamine is utilised in the preparation of amine ligands through intramolecular dealkylation reactions. This application is crucial in coordination chemistry and catalyst development.
Selective Lithiation Reactions
This compound exhibits selective β-lithiation when deprotonated using lithiumalkyl reagents. This property makes it valuable in advanced organic synthesis for precise functionalization.
Organic Synthesis Building Block
As a readily available organic building block, TEEDA serves as a versatile reagent in the construction of more complex molecular architectures in research laboratories.
| Molecular weight | 172.31 |
|---|---|
| Linear formula | (C2H5)2NCH2CH2N(C2H5)2 |
| Assay | 98% |
| Boiling point | 189-192 °C(lit.) |
| Density | 0.808 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4343(lit.) |
| Application | N,N, N′,N′-Tetraethylethylenediamine (TEEDA) has been used in the synthesis of amine ligands using simple or double intramolecular dealkylation reaction1. TEEDA exhibits selective β-lithiation during deprotonation with lithiumalkyls2. |


Hazard statements
- H226Flammable liquid and vapour
- H314Causes severe skin burns and eye damage
Precautionary statements
- 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 | 59 °C / 138.2 °F |
| Transport (UN / ADR) | UN 2734PSN2 3(8) / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-27-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 N,N,N′,N′-Tetraethylethylenediamine used for?
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N,N,N′,N′-Tetraethylethylenediamine is used in the synthesis of amine ligands and for selective β-lithiation reactions in organic chemistry. It also serves as a general building block in chemical synthesis.
What is the CAS number and molecular formula for N,N,N′,N′-Tetraethylethylenediamine?
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The CAS number is 150-77-6, and the linear formula is (C2H5)2NCH2CH2N(C2H5)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies N,N,N′,N′-Tetraethylethylenediamine with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should N,N,N′,N′-Tetraethylethylenediamine be handled safely?
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N,N,N′,N′-Tetraethylethylenediamine is a flammable liquid and causes severe skin burns and eye damage. Handle with appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, in a well-ventilated area. Refer to the Safety Data Sheet for full details.
Is N,N,N′,N′-Tetraethylethylenediamine a controlled substance?
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The provided data does not indicate that N,N,N′,N′-Tetraethylethylenediamine is a controlled substance.
How is N,N,N′,N′-Tetraethylethylenediamine packed and shipped?
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N,N,N′,N′-Tetraethylethylenediamine is shipped as UN 2734, Class 3 (8), Packing Group II, indicating it is a flammable and corrosive liquid.
How can I request a quote or sample?
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Please use the 'Request a Quote' or 'Request Sample' buttons on our website, or contact our sales team directly with your requirements.
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