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294136

Sigma-Aldrich

Tetraoctylammonium bromide

98%

Synonym(s):
TOAB
Linear Formula:
[CH3(CH2)7]4N(Br)
CAS Number:
Molecular Weight:
546.79
Beilstein:
4169176
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

form

solid

mp

95-98 °C (lit.)

SMILES string

[Br-].CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC

InChI

1S/C32H68N.BrH/c1-5-9-13-17-21-25-29-33(30-26-22-18-14-10-6-2,31-27-23-19-15-11-7-3)32-28-24-20-16-12-8-4;/h5-32H2,1-4H3;1H/q+1;/p-1

InChI key

QBVXKDJEZKEASM-UHFFFAOYSA-M

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General description

Tetraoctylammonium bromide is an organic surface coating agent commonly used to control the size and shape during nanoparticle synthesis.

Application

Tetraoctylammonium bromide (TOAB) has been used as a phase transfer agent to transfer gold tetrachloroaurate from aqueous phase to organic phase in a two-phase (organic-aqueous) method of alkanethiol stabilized gold nanoparticle synthesis. It is also used to prepare TOAB-capped gold nanoparticles, which shows well-defined plasmon absorption compared to thiol-capped nanoparticles.

Packaging

5 g in glass bottle
25 g in poly bottle

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

Certificate of Analysis

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Certificate of Origin

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