359025

Didodecyldimethylammonium bromide

98%

• Synonym(s): DDAB, Dimethyldidodecylammonium bromide
• 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

Properties

• 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

Description

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 Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• 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