MilliporeSigma
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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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This Item
24197025281687249
assay

98%

assay

≥99%

assay

99%

assay

≥99.0% (AT)

form

solid

form

-

form

solid

form

crystals

mp

95-98 °C (lit.)

mp

100-101 °C (lit.)

mp

99-100 °C (lit.)

mp

-

Quality Level

200

Quality Level

100

Quality Level

100

Quality Level

100

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.

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

213.8 °F - closed cup

Flash Point(C)

101 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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