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Merck
CN

243205

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
UNSPSC Code:
12142100
NACRES:
NA.22
PubChem Substance ID:
24854605
EC Number:
200-875-0
Beilstein/REAXYS Number:
956566
MDL number:
MFCD00008327

Key Documents

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Product Name

Trimethylamine, anhydrous, ≥99%

InChI key

GETQZCLCWQTVFV-UHFFFAOYSA-N

InChI

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

SMILES string

CN(C)C

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.)

functional group

amine

storage temp.

2-8°C

Quality Level

200

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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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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

2A - Gases

wgk

WGK 1

flash_point_f

19.4 °F - closed cup

flash_point_c

-7 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, multi-purpose combination respirator cartridge (US)

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBS9460
SHBS9325
SHBR6867
SHBR2532
SHBM3610

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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
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
S L Hillier
American journal of obstetrics and gynecology, 169(2 Pt 2), 455-459 (1993-08-01)
Bacterial vaginosis is characterized microbiologically by replacement of the Lactobacillus-predominant vaginal flora by Gardnerella vaginalis, Bacteroides species, Mobiluncus species, and genital mycoplasmas. A standardized, laboratory-based diagnostic test for bacterial vaginosis is desirable in those instances in which a microscope is
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