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Sigma-Aldrich

Triethylamine

≥99.5%

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Synonym(s):
N,N-Diethylethanamine
Linear Formula:
(C2H5)3N
CAS Number:
Molecular Weight:
101.19
Beilstein:
605283
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

vapor density

3.5 (vs air)

Quality Level

vapor pressure

51.75 mmHg ( 20 °C)

Assay

≥99.5%

form

liquid

autoignition temp.

593 °F

expl. lim.

8 %

impurities

≤0.1% (Karl Fischer)

refractive index

n20/D 1.401 (lit.)

pH

12.7 (15 °C, 100 g/L)

bp

88.8 °C (lit.)

mp

−115 °C (lit.)

solubility

water: soluble 112 g/L at 20 °C

density

0.726 g/mL at 25 °C (lit.)

storage temp.

room temp

SMILES string

CCN(CC)CC

InChI

1S/C6H15N/c1-4-7(5-2)6-3/h4-6H2,1-3H3

InChI key

ZMANZCXQSJIPKH-UHFFFAOYSA-N

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General description

Triethylamine (TEA, Et3N) is an aliphatic amine. Its addition to matrix-assisted laser desorption/ionization (MALDI) matrices affords transparent liquid matrices with enhanced ability for spatial resolution during MALDI mass spectrometric (MS) imaging. A head-space gas chromatography (GC) procedure for the determination of triethylamine in active pharmaceutical ingredients has been reported. The viscosity coefficient of triethylamine vapor over a range of density and temperature has been measured.

Application

Triethylamine has been used during the synthesis of:
  • 5′-dimethoxytrityl-5-(fur-2-yl)-2′-deoxyuridine
  • 3′-(2-cyanoethyl)diisopropylphosphoramidite-5′-dimethoxytrityl-5-(fur-2-yl)-2′-deoxyuridine
  • polyethylenimine600-β-cyclodextrin (PEI600-β-CyD)
It may be used as a homogeneous catalyst for the preparation of glycerol dicarbonate, via transesterification reaction between glycerol and dimethyl carbonate (DMC).

Packaging

18 L packaged in closed-head steel drums; 100 mL, 500 mL, 2 L, 6×500 mL, 4 L packaged in glass bottles; 200 L packaged in Kilo-Lab® steel cylinders

Legal Information

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1A - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

12.2 °F

Flash Point(C)

-11 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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