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Sigma-Aldrich

Tetraoctadecylammonium bromide

98%

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Synonym(s):
Tetrastearylammonium bromide
Linear Formula:
[CH3(CH2)17]4N(Br)
CAS Number:
Molecular Weight:
1107.86
Beilstein:
5846481
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

Assay

98%

form

powder

mp

103-105 °C (lit.)

SMILES string

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

InChI

1S/C72H148N.BrH/c1-5-9-13-17-21-25-29-33-37-41-45-49-53-57-61-65-69-73(70-66-62-58-54-50-46-42-38-34-30-26-22-18-14-10-6-2,71-67-63-59-55-51-47-43-39-35-31-27-23-19-15-11-7-3)72-68-64-60-56-52-48-44-40-36-32-28-24-20-16-12-8-4;/h5-72H2,1-4H3;1H/q+1;/p-1

InChI key

BUXYZRAZWWVKDS-UHFFFAOYSA-M

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Application

Tetraoctadecylammonium bromide can be used:
  • In the synthesis of modified montmorillonite (MMT) named C72N–MMT, which can be used to prepare protein-based nanocomposite material.
  • As an additive in the stabilization of liquid crystalline blue phases for optoelectronic and photonic applications.
  • As a model compound in the study of the effect of quaternary ammonium salts in polymeric membranes on the functioning of ion-selective electrodes. 

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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)

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The effect of lipophilic salts on surface charge in polymeric ion-selective electrodes
Zubrowska M, et al.
Electrochimica Acta, 56(17), 6114-6122 (2011)
Selective stabilisation of blue phase liquid crystal induced by distinctive geometric structure of additives
Lee J, et al.
Liq. Cryst., 45(2), 230-237 (2018)
Synthesis of nanocomposite films from wheat gluten matrix and MMT intercalated with different quaternary ammonium salts by way of hydroalcoholic solvent casting
Guilherme MR, et al.
Composites Part A: Applied Science and Manufacturing, 41(3), 375-382 (2010)

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