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471283

Sigma-Aldrich

Triethylamine

≥99.5%

Synonym(s):

N,N-Diethylethanamine

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About This Item

Linear Formula:
(C2H5)3N
CAS Number:
121-44-8
Molecular Weight:
101.19
Beilstein:
605283
EC Number:
204-469-4
MDL number:
MFCD00009051
UNSPSC Code:
12352116
PubChem Substance ID:
24870713
NACRES:
NA.21

vapor density

3.5 (vs air)

Quality Level

100

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 - closed cup

Flash Point(C)

-11 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PRTR

Class I Designated Chemical Substances

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

471283-BULK:
471283-2.5L:
471283-25ML:
471283-2L:4548173942025
471283-200L:4548173942018
471283-18L:
471283-4X100ML:4548173925738
80405:
471283-4L:
471283-6X500ML:4548173925745
471283-1L:
471283-100ML:4548173942001
QR-013-500ML:
471283-2ML:
471283-500ML:4548173942032
471283-VAR:
471283-5L:
471283-4X4L:

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Certificates of Analysis (COA)

Lot/Batch Number
0000367250
STBL3805
MKCW6398
MKCW6400
MKCV5818

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Triethylamine United States Pharmacopeia (USP) Reference Standard

USP

1683559

Triethylamine

Nonanoyl chloride 96%

Sigma-Aldrich

156833

Nonanoyl chloride

Synthesis of glycerol 1,2-carbonate by transesterification of glycerol with dimethyl carbonate using triethylamine as a facile separable homogeneous catalyst.
Ochoa-Gomez JR, et al.
Green Chemistry, 14(12), 3368-3376 (2012)
GC quantification of cyclopropylamine, diethylamine and triethylamine in active pharmaceutical ingredients.
Raghuram P, et al.
Chromatographia, 71(9-10), 963-966 (2010)
Transparent triethylamine-containing MALDI matrices.
Rubakhin SS and Sweedler JV.
Israel J. Chem., 47(2), 185-193 (2007)
Nicholas J Greco et al.
Nature protocols, 2(2), 305-316 (2007-04-05)
We describe procedures for the synthesis of a fluorescent pyrimidine analog and its site-specific incorporation into a DNA oligomer. The 5'-protected and 3'-activated nucleoside 4 is synthesized in three steps with an overall yield of 40%. Site-specific incorporation into a
The viscosity of triethylamine vapor at low densities and in the saturated vapor phase.
Teske V, et al.
Fluid Phase Equilibria, 293(2), 190-195 (2010)
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