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44242

Sigma-Aldrich

Dodecyltrimethylammonium chloride

≥99.0% (AT)

Synonym(s):

DTAC

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About This Item

Linear Formula:
CH3(CH2)11N(CH3)3Cl
CAS Number:
112-00-5
Molecular Weight:
263.89
Beilstein:
3915951
EC Number:
203-927-0
MDL number:
MFCD00041974
UNSPSC Code:
12352107
PubChem Substance ID:
57650221
NACRES:
NA.22

description

cationic

Assay

≥99.0% (AT)

form

solid

mol wt

263.89 g/mol

mp

37 °C

solubility

H2O: 50 mg/mL, clear, colorless

SMILES string

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

InChI

1S/C15H34N.ClH/c1-5-6-7-8-9-10-11-12-13-14-15-16(2,3)4;/h5-15H2,1-4H3;1H/q+1;/p-1

InChI key

DDXLVDQZPFLQMZ-UHFFFAOYSA-M

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General description

Dodecyltrimethylammonium chloride is a cationic alkyltrimethylammonium chloride surfactant that can undergo micellization in aqueous solution. it is mainly used for the denaturation of proteins.

Application

Dodecyltrimethylammonium chloride has also been used as a cationic surfactant in:
  • Transfer hydrogenation reactions of ketones/aldehydes.
  • Ring-opening metathesis polymerization of olefins.

Pictograms

Exclamation markEnvironment
GHS07,GHS09

Signal Word

Warning

Hazard Statements

H302 - H315 - H319 - H400

Hazard Classifications

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

Storage Class Code

13 - Non 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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Phase separation in the isolation and purification of membrane proteins.
Arnold T
Biotechniques, 43(4), 427-442 (2007)
Temperature and salt-induced micellization of dodecyltrimethylammonium chloride in aqueous solution: A thermodynamic study.
Sarac B
Journal of Colloid and Interface Science, 338(1), 216-221 (2009)
Effect of temperature on critical micelle concentration and thermodynamic behavior of dodecyldimethylethylammonium bromide and dodecyltrimethylammonium chloride in aqueous media.
Mehta S
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 255(1-3), 153-157 (2005)
Jonas Carlstedt et al.
Physical chemistry chemical physics : PCCP, 14(27), 9574-9577 (2012-06-14)
Polyelectrolytes with amphiphilic counterions, PEACs, are water insoluble because the amphiphiles self-assemble into highly charged micelles that strongly associate with the equally highly charged polyions. However, in the presence of water soluble cyclodextrins (CDs) that form inclusion complexes with the
Marcos A Villetti et al.
The journal of physical chemistry. B, 115(19), 5868-5876 (2011-04-27)
Interactions between uncharged polymers and cationic surfactants are considered weaker than interactions with the anionic analogues. This work describes the binding occurring between methylcellulose (MC) and the cationic surfactant DTAB in aqueous medium. In the absence of salt, MC-DTAB exhibits
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