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411019

Sigma-Aldrich

N,N,N′,N′-Tetramethylethylenediamine

≥99.5%, purified by redistillation

Synonym(s):

1,2-Bis(dimethylamino)ethane, TEMED, TMEDA

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About This Item

Linear Formula:
(CH3)2NCH2CH2N(CH3)2
CAS Number:
110-18-9
Molecular Weight:
116.20
Beilstein:
1732991
EC Number:
203-744-6
MDL number:
MFCD00008335
UNSPSC Code:
12352100
PubChem Substance ID:
24865721
NACRES:
NA.22

Quality Level

200

Assay

≥99.5%

form

liquid

purified by

redistillation

expl. lim.

9.08 %

refractive index

n20/D 1.4179 (lit.)

bp

120-122 °C (lit.)

mp

−55 °C (lit.)

density

0.775 g/mL at 20 °C (lit.)

SMILES string

CN(C)CCN(C)C

InChI

1S/C6H16N2/c1-7(2)5-6-8(3)4/h5-6H2,1-4H3

InChI key

KWYHDKDOAIKMQN-UHFFFAOYSA-N

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General description

N,N,N′,N′-Tetramethylethylenediamine (TMEDA) is a bidentate tertiary amine. It is a Lewis base having good solvating properties. It is useful ligand for organolithium chemistry. Ultrafast molecular structural dynamics of the charge transfer in N,N,N′,N′-tetramethylethylenediamine has been studied by Rydberg fingerprint spectroscopy.

Application


  • Hydrogenolysis of Cationic Half-Sandwich Zinc Complexes Containing a Chelating Amine: Facile Cleavage of Zinc-Carbon Bond by Dihydrogen To Give Zinc Hydride Cations.: This research explores the hydrogenolysis of cationic zinc complexes facilitated by N,N,N′,N′-Tetramethylethylenediamine (TMEDA), emphasizing the cleavage of zinc-carbon bonds, contributing significantly to catalyst development and organic synthesis (Mahawar et al., 2024, DOI: 10.1002/chem.202401262).

  • Electrophoresis.: This study highlights the use of TMEDA in electrophoresis applications, enhancing the resolution and efficiency of protein and nucleic acid separations, vital for biochemical research (Sonagra & Dholariya, 2024, PubMed ID: 36251838).

  • Dihydrogen Cleavage by a Zinc-Zinc Bond of a Heteroleptic Dizinc(I) Cation.: TMEDA is utilized in the activation of zinc-zinc bonds for hydrogen cleavage, demonstrating its importance in inorganic chemistry and catalyst development (Mahawar et al., 2024, DOI: 10.1021/acs.inorgchem.4c01116).

  • Nontoxic Initiator Alternatives to TEMED for Redox Hydrogel Polymerization.: The study investigates safer alternatives to TMEDA for hydrogel polymerization, essential for biomedical applications and polymer chemistry (Pumford et al., 2024, DOI: 10.1021/acsabm.3c01264).

  • Photoinduced Alkylsulfonylation and Cyanoalkylsulfonylation of Morita-Baylis-Hillman Adducts via Multicomponent Insertion of Sulfur Dioxide.: This paper discusses the role of TMEDA in facilitating multicomponent reactions for organic synthesis, crucial for developing new synthetic methodologies (Song et al., 2024, DOI: 10.1021/acs.joc.4c00052).

Signal Word

Danger

Hazard Statements

H225 - H302 - H314 - H331

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

61.7 °F - closed cup

Flash Point(C)

16.5 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Organometallic p-complexes XII. The metalation of benzene and ferrocene by n-butyllithium-N, N, N', N'-tetramethylethylenediamine
Rausch MD and Ciappenelli DJ.
Journal of Organometallic Chemistry, 10(1), 127-136 (1967)
Hajime Mori et al.
The Journal of organic chemistry, 71(24), 9004-9012 (2006-11-18)
The novel example of a vinylic hydrogen more reactive than a benzylic hydrogen was found by treatment of a twisted styrene derivative with a strong base followed by D(2)O quenching. In this paper, the full details of the examples of
Marina V Novoselova et al.
Colloids and surfaces. B, Biointerfaces, 181, 680-687 (2019-06-22)
High intensity focused ultrasound (HIFU) is widely used in medical practice, including cancer therapy. Also this approach is promising for remote release of encapsulated drugs in various other biomedical applications where local treatment is needed. Our approach underpins the minimization
Is N, N, N', N'-tetramethylethylenediamine a good ligand for lithium?
Collum DB.
Accounts of Chemical Research, 25(10), 448-454 (1992)
Xinxin Cheng et al.
The journal of physical chemistry. A, 119(12), 2813-2818 (2015-02-26)
We have explored the ultrafast molecular structural dynamics associated with charge transfer in N,N,N',N'-tetramethylethylenediamine using Rydberg fingerprint spectroscopy in conjunction with self-interaction corrected density functional theory. Excitation at 239 nm prepares the molecule in the Franck-Condon region of the 3s
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