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359246

Sigma-Aldrich

Trimethyloctadecylammonium bromide

98%

Synonym(s):

C18TAB, TMODAB, Octadecyltrimethylammonium bromide

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About This Item

Linear Formula:
CH3(CH2)17N(Br)(CH3)3
CAS Number:
Molecular Weight:
392.50
Beilstein:
3574090
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

98%

mp

~250 °C (dec.) (lit.)

SMILES string

C[N+](C)(CCCCCCCCCCCCCCCCCC)C.[Br-]

InChI

1S/C21H46N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(2,3)4;/h5-21H2,1-4H3;1H/q+1;/p-1

InChI key

SZEMGTQCPRNXEG-UHFFFAOYSA-M

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Application

Trimethyloctadecylammonium bromide (C18TAB) is generally used as a surfactant. It can be used in the preparation of polyoxomolybdate-surfactant hybrid layered crystals. It can also be used as a surface modifier in the liquid chromatography.

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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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Determination of UV-absorbing anions in environmental samples by microcolumn high-performance liquid chromatography.
Vereshchagin A L, et al.
Journal of Analytical Chemistry, 55(10), 1000-1002 (2000)
Layered and molecular-structural control in polyoxomolybdate hybrid crystals by surfactant chain length.
Ito T, et al.
Journal of Molecular Structure, 1106, 220-226 (2016)
Juan C López-Montilla et al.
Water research, 39(9), 1907-1913 (2005-05-19)
The removal of model pollutants bromocresol green (BG) and phenol from water is demonstrated via two liquid-liquid extraction methods. Both methods exploit selective interactions established by the pollutant molecule with a surfactant, oil, or alcohol, and are variants of the
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Spontaneous deformation of a tetradecane droplet with palmitic acid on an aqueous phase with stearyltrimethylammonium chloride is reported. Palmitic acid is transported from the oil droplet to the aqueous phase by the concentration difference between the organic and the aqueous

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