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243205

Sigma-Aldrich

Trimethylamine

anhydrous, ≥99%

Synonym(s):

N,N,N-Trimethylamine, N,N-Dimethylmethanamine

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About This Item

Linear Formula:
(CH3)3N
CAS Number:
75-50-3
Molecular Weight:
59.11
Beilstein:
956566
EC Number:
200-875-0
MDL number:
MFCD00008327
UNSPSC Code:
12142100
PubChem Substance ID:
24854605
NACRES:
NA.22

grade

anhydrous

vapor density

2.09 (vs air)

vapor pressure

13.3 psi ( 21 °C)

Assay

≥99%

autoignition temp.

374 °F

expl. lim.

11.6 %

impurities

≤0.05% ammonia
≤0.05% methylamine
≤0.2% dimethylamine

bp

3-4 °C (lit.)

mp

−117 °C (lit.)

density

0.63 g/mL at 20 °C (lit.)

storage temp.

2-8°C

SMILES string

CN(C)C

InChI

1S/C3H9N/c1-4(2)3/h1-3H3

InChI key

GETQZCLCWQTVFV-UHFFFAOYSA-N

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Application

Trimethylamine (TMA) has been used in the preparation of poly[9,9′-bis(6′-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), a water-soluble, cationic conjugated polymer used in label-free DNA microarrays. It can also be used to prepare benzyltrimethylammonium chloride, which then reacts with sodium ethoxide to form benzyltrimethylammonium ethoxide. The adsorption of TMA on the gold surface of trimethylsilylated barium nitrate-gold/titanosilicate catalyst acts as a promoter for the propylene epoxidation with oxygen and hydrogen.

Packaging

Supplied in a Sure/Pac™ cylinder and has a 316 stainless steel needle valve with a male 1/4" NPTF outlet thread installed . Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.

Compatible with the following:

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

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Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Gas 1A - Press. Gas Liquefied gas - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

2A - Gases

WGK

WGK 1

Flash Point(F)

19.4 °F - closed cup

Flash Point(C)

-7 °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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Benzyltrimethylammonium Ethoxide: Ammonium, benzyltrimethyl?, ethoxide
Croxall W J, et al.
Organic Syntheses, 38, 5-5 (2003)
Trimethylamine as a Gas?Phase Promoter: Highly Efficient Epoxidation of Propylene over Supported Gold Catalysts.
Chowdhury B, et al.
Angewandte Chemie (International Edition in English), 45(3), 412-415 (2006)
Bin Liu et al.
Nature protocols, 1(4), 1698-1702 (2007-05-10)
We describe the synthesis of poly[9,9'-bis(6''-N,N,N-trimethylammonium)hexyl)fluorene-co-alt-4,7-(2,1,3-benzothiadiazole) dibromide] (PFBT), a cationic, water-soluble conjugated polymer used in label-free DNA microarrays. This polymer was designed to have a maximum absorbance of close to 488 nm, which meets the excitation wavelength of most commercial
E L Barrett et al.
Annual review of microbiology, 39, 131-149 (1985-01-01)
Trimethylamine oxide, which is found in relatively high concentrations in the tissues of marine animals, serves as an electron acceptor in the anaerobic metabolism of a number of bacteria associated primarily with three environments: the marine environment (e.g. Alteromonas and
M Al-Waiz et al.
Clinical pharmacology and therapeutics, 42(5), 588-594 (1987-11-01)
Trimethylamine (TMA) and its N-oxide (TMAO) are normal components of human urine. They are present in the diet and also derived from the enterobacterial metabolism of precursors such as choline. Dietary TMA is almost entirely metabolized to and excreted as
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