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359025

Sigma-Aldrich

Didodecyldimethylammonium bromide

98%

Synonym(s):

DDAB, Dimethyldidodecylammonium bromide

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About This Item

Linear Formula:
[CH3(CH2)11]2N(CH3)2(Br)
CAS Number:
3282-73-3
Molecular Weight:
462.63
Beilstein:
3576662
EC Number:
221-923-7
MDL number:
MFCD00041969
UNSPSC Code:
12352116
PubChem Substance ID:
24862048
NACRES:
NA.22

Quality Level

200

Assay

98%

mp

157-162 °C (lit.)

SMILES string

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

InChI

1S/C26H56N.BrH/c1-5-7-9-11-13-15-17-19-21-23-25-27(3,4)26-24-22-20-18-16-14-12-10-8-6-2;/h5-26H2,1-4H3;1H/q+1;/p-1

InChI key

XRWMGCFJVKDVMD-UHFFFAOYSA-M

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Application

Didodecyldimethylammonium bromide (DDAB) is a double-chain cationic surfactant.

Possible applications:
  • DDAB can be employed as a co-surfactant to synthesize well-defined multilamellar vesicular silica with an adjustable number of layers.
  • As a surfactant to synthesize gold nanoclusters and nanocubes.
  • It forms supersaturated reverse micelles and microemulsions that act as organized reaction microenvironments for the synthesis of barium sulfate.
  • Calcium montmorillonite can be modified by DDAB through direct ion-exchange to synthesize thermally stable organoclay.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

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

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Certificates of Analysis (COA)

Lot/Batch Number
BGBC2751V
BGBC0232V
BCBH4920V
BCBF6933V
1452661V

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R A Carvalho et al.
Journal of colloid and interface science, 354(2), 725-732 (2010-12-15)
NMR spectroscopy has been used to study and characterize the interactions in solution between β-CD and alkyl-α,ω-bis(dodecyldimethyl ammonium bromide) gemini surfactants with the following head-group spacer lengths: 2, 4, 6, 8, and 10. The application of the method of continuous
XRD, TEM, and thermal analysis of Arizona Ca-montmorillonites modified with didodecyldimethylammonium bromide.
Sun Z.
Journal of Colloid and Interface Science, 408, 75-81 (2013)
Double-chained surfactants for semipermanent wall coatings in capillary electrophoresis.
Melanson JE.
Analytical Chemistry, 72(17), 4110-4114 (2000)
S Harirforoosh et al.
European review for medical and pharmacological sciences, 20(22), 4818-4829 (2016-12-03)
Celecoxib (CEL) is a nonsteroidal anti-inflammatory drug (NSAID) showing selective cycloxygenase-2 inhibition. While effective as a pain reducer, CEL exerts some negative influence on renal and gastrointestinal parameters. This study examined CEL pharmacodynamics and pharmacokinetics following drug reformulation as a
Synthesis, characterization, and bioconjugation of fluorescent gold nanoclusters toward biological labeling applications.
Lin CAJ, et al.
ACS Nano, 3(2), 395-401 (2009)
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