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471283

Sigma-Aldrich

Triethylamine

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
Assay:
≥99.5%
bp:
88.8 °C (lit.)
vapor pressure:
51.75 mmHg ( 20 °C)
Pricing and availability is not currently available.

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.)

functional group

amine

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.[1] A head-space gas chromatography (GC) procedure for the determination of triethylamine in active pharmaceutical ingredients has been reported.[2] The viscosity coefficient of triethylamine vapor over a range of density and temperature has been measured.[3]

Application

Triethylamine has been used during the synthesis of:
  • 5′-dimethoxytrityl-5-(fur-2-yl)-2′-deoxyuridine[4]
  • 3′-(2-cyanoethyl)diisopropylphosphoramidite-5′-dimethoxytrityl-5-(fur-2-yl)-2′-deoxyuridine[4]
  • polyethylenimine600-β-cyclodextrin (PEI600-β-CyD)[5]
It may be used as a homogeneous catalyst for the preparation of glycerol dicarbonate, via transesterification reaction between glycerol and dimethyl carbonate (DMC).[6]

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

Kilo-Lab 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

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Certificates of Analysis (COA)

Lot/Batch Number
0000407016
0000367250
0000346976
0000321456
0000305693

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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)
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)
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)
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Questions

1–4 of 4 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Hello, I would like to know the molarity of this product Triethylamine 471283-100ML and in what it is? I tried to read it this information on the picture but it’s too small and not clear… Thank you for your help!

    1 answer

    1. The concentration of this product can be determined using the lot specific purity reported in the Certificate of Analysis, the density, and the compound molecular weight. This product has a density of 0.726 g/mL and a molecular weight of 101.19 g/mol. The minimum purity is 99.5%, thus the molarity will vary slightly from lot to lot. The molarity can range from 7.14M (99.5%) to 7.17M (100%).

      Helpful?

  4. Hello, do you sell triethylamine come in a sureseal bottle?

    1 answer

    1. Yes, this product is packaged in a SureSeal bottle.

      Helpful?

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