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Sigma-Aldrich

Trimethyloctylammonium chloride

≥97.0% (AT)

Synonym(s):

Octyltrimethylammonium chloride

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About This Item

Linear Formula:
CH3(CH2)7N(CH3)3(Cl)
CAS Number:
Molecular Weight:
207.78
Beilstein:
4005082
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

Assay

≥97.0% (AT)

form

crystals

SMILES string

[Cl-].CCCCCCCC[N+](C)(C)C

InChI

1S/C11H26N.ClH/c1-5-6-7-8-9-10-11-12(2,3)4;/h5-11H2,1-4H3;1H/q+1;/p-1

InChI key

AQZSPJRLCJSOED-UHFFFAOYSA-M

Application

Trimethyloctylammonium chloride (TOMAC) is a cationic surfactant that can be used:
  • To separate SiC from ground SiO2 by flotation method.
  • To prepare porous organosilicates using 1,2-bis(trimethoxysilyl)ethane as a silica precursor.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

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

Target Organs

Respiratory system

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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Flotation separation of SiC from wastes in the silicon wafer slicing process
Shibata, J, et al.
Kagaku Kogaku Ronbunshu, 32(1), 93-98 (2006)
Synthesis of porous organosilicates in the presence of alkytrimethylammonium chlorides: Effect of the alkyl chain length
Hamoudi S, et al.
The Journal of Physical Chemistry B, 105(38), 9118-9123 (2001)
J R Elliott et al.
The Journal of physiology, 350, 429-445 (1984-05-01)
The effects of octyltrimethylammonium ions (OTMA+), octyl sulphate ions (OS-) and octanoic acid (OA) on the sodium current of the voltage-clamped squid giant axon have been investigated using intracellular and extracellular application of the test substances. OTMA+ applied externally at
J G Foulks et al.
Canadian journal of physiology and pharmacology, 62(4), 350-355 (1984-04-01)
The local anaesthetic effect of cationic, anionic, and neutral alkyl amphipathic agents was similarly enhanced in an apparently nonspecific way by circumstances which modulate electrostatic interactions (acidity, modification of charged groups at the sarcolemmal surface by group-specific reagents, or changes
David Zanuy et al.
Biopolymers, 63(3), 151-162 (2002-01-12)
We present a molecular dynamics simulation at 300 K in explicit solvent environment of chloroform of the stoichiometric complex formed by poly(alpha,L-glutamate) and octyltrimethylammonium ions. We observed that the alpha-helix conformation of the polypeptide chain remains stable during a 2-ns

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