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Safety Information

T9281

Sigma-Aldrich

N,N,N′,N′-Tetramethylethylenediamine

BioReagent, suitable for electrophoresis, ≥99.0%

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:
41105319
PubChem Substance ID:
24900591
NACRES:
NB.22

product line

BioReagent

Quality Level

200

Assay

≥99.0%

expl. lim.

9.08 %

technique(s)

electrophoresis: suitable

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.)

suitability

suitable for electrophoresis

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

TEMED (N,N,N′,N′-Tetramethylethylenediamine) is molecule which allows rapid polymerization of polyacrylamide gels. In the presence of ammonium persulfate, TEMED is responsible for the formation of free radicals from persulfate, thereby initiating the acrylamide polymerization process. However, excess concentration of TEMED can result in abnormal separation patterns.

Application

TEMED (N,N,N′,N′-Tetramethylethylenediamine) has been used for the preparation of acrylamide hydrogels and sodium dodecyl sulfate-polyacrylamide gels.

Caution

Handle and store under inert gas, air and moisture sensitive.

Analysis Note

Tested as a catalyst for PAGE.

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

WGK

WGK 1

Flash Point(F)

61.7 °F

Flash Point(C)

16.5 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品

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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The structure of the alkylzinc-tetramethylethyl-enediamine (TMEDA) cluster cation 3 has been determined in the gas phase by a combination of tandem mass spectrometry, infrared multiphoton dissociation (IRMPD) spectroscopy, and DFT calculations. Both sets of experimental results establish the existence of
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