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359025 Sigma-Aldrich

Didodecyldimethylammonium bromide

98%

Synonym: DDAB, Dimethyldidodecylammonium bromide

  • CAS Number 3282-73-3

  • Linear Formula [CH3(CH2)11]2N(CH3)2(Br)

  • Molecular Weight 462.63

  •  Beilstein Registry Number 3576662

  •  EC Number 221-923-7

  •  MDL number MFCD00041969

  •  PubChem Substance ID 24862048

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Properties

Related Categories Ammonium Salts, Chemical Synthesis, Phase Transfer Catalysts, Synthetic Reagents
InChI Key   XRWMGCFJVKDVMD-UHFFFAOYSA-M
assay   98%
mp   157-162 °C (lit.)

Description

Packaging

2, 10 g in glass bottle

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.

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

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Protocols & Articles
Peer-Reviewed Papers
15

References

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