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Key Documents

D5047

Sigma-Aldrich

Dodecyltrimethylammonium bromide

BioXtra, ~99%

Synonym(s):

Lauryltrimethylammonium bromide

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About This Item

Linear Formula:
CH3(CH2)11N(CH3)3Br
CAS Number:
Molecular Weight:
308.34
Beilstein:
3597463
EC Number:
MDL number:
UNSPSC Code:
12161900
PubChem Substance ID:
NACRES:
NA.25

description

cationic

Quality Level

product line

BioXtra

Assay

~99%

form

crystals

mol wt

308.34 g/mol

impurities

<0.001% Phosphorus (P)
<0.1% Insoluble matter

ign. residue

<0.1%

mp

246 °C (dec.) (lit.)

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

sulfate (SO42-): <0.05%

cation traces

Al: <0.0005%
Ca: <0.0005%
Cu: <0.0005%
Fe: <0.002%
K: <0.005%
Mg: <0.0005%
NH4+: <0.1%
Na: <0.005%
Pb: <0.001%
Zn: <0.0005%

SMILES string

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

InChI

1S/C15H34N.BrH/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

XJWSAJYUBXQQDR-UHFFFAOYSA-M

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General description

Dodecyltrimethylammonium bromide is a single-chain surfactant.

Application

Dodecyltrimethylammonium bromide has been used in a study to assess the relation between counterion distribution and miscibility of counterions at the solution surface. This was deduced for surfactant mixtures containing common surfactant ions but different counterions. It has also been used in a study to investigate its micelle formation throughout the entire composition range of water-dimethylsulfoxide (DMSO) mixtures using conductimetry, density measurements, and small angle neutron scattering.

Pictograms

Skull and crossbonesEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

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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Véronique Peyre et al.
Journal of colloid and interface science, 389(1), 164-174 (2012-10-09)
The micellization in mixed solvent was studied using conductimetry, density measurements (molar volumes), and small angle neutron scattering (SANS) to explore dodecyltrimethylammonium bromide (DTABr) micelle formation throughout the entire composition range of water-dimethylsulfoxide (DMSO) mixtures. As the concentration of DMSO
Study on the distribution of binary mixed counterions in surfactant adsorbed films by total reflection XAFS measurements
Y Imai et al.
Journal of Colloid and Interface Science, 15, 219-224 (2012)
Yuchun Han et al.
Langmuir : the ACS journal of surfaces and colloids, 28(43), 15134-15140 (2012-10-13)
The association behaviors of single-chain surfactant dodecyltrimethylammonium bromide (DTAB) with double hydrophilic block co-polymers poly(ethylene glycol)-b-poly(sodium glutamate) (PEG(113)-PGlu(50) or PEG(113)-PGlu(100)) were investigated using isothermal titration microcalorimetry, cryogenic transmission electron microscopy, circular dichroism, ζ potential, and particle size measurements. The electrostatic
Deping Huang et al.
ACS applied materials & interfaces, 4(9), 4665-4671 (2012-08-11)
Hierarchical, three-fold symmetrical dendritic gold was prepared in an aqueous solution of the quaternary ammonium cationic surfactant dodecyltrimethylammonium bromide (DTAB). Similar surfactants with different head groups and hydrocarbon chain lengths were also used for comparison. Two-fold and one-fold symmetrical dendritic
Dan Ke et al.
Langmuir : the ACS journal of surfaces and colloids, 27(23), 14112-14117 (2011-10-19)
The interaction between dodecyltrimethylammonium bromide (DTAB) and curcumin has been studied in pH 5.0 sodium phosphate buffer using absorption and fluorescence measurements. With increasing DTAB concentration (C(DTAB)) from 0 to 20 mM, the absorption peak of curcumin at 430 nm

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