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294136

Tetraoctylammonium bromide

Name: Tetraoctylammonium bromide
Brand: ALDRICH

98%, solid

Synonym(s):

TOAB

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About This Item

Linear Formula:

[CH₃(CH₂)₇]₄N(Br)

CAS Number:

14866-33-2

Molecular Weight:

546.79

NACRES:

NA.22

PubChem Substance ID:

24857704

UNSPSC Code:

12352107

EC Number:

238-936-9

MDL number:

MFCD00011863

Beilstein/REAXYS Number:

4169176

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Properties

Product Name

Tetraoctylammonium bromide, 98%

Quality Level

200

assay

98%

form

solid

reaction suitability

core: ammonium

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

Description

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.

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pictograms

GHS05

signalword

Danger

hcodes

H315,H318

pcodes

P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313 - P362 + P364

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

213.8 °F - closed cup

flash_point_c

101 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Surface binding properties of tetraoctylammonium bromide-capped gold nanoparticles.

Thomas K G, et al.

Langmuir, 18(9), 3722-3727 (2002)

Integration of Organic Fluorophores in the Surface of Polymer?Coated Colloidal Nanoparticles for Sensing the Local Polarity of the Environment.

Amin F, et al.

ChemPhysChem, 13(4), 1030-1035 (2012)

Cytotoxicity of organic surface coating agents used for nanoparticles synthesis and stability.

Ying Zhang et al.

Toxicology in vitro : an international journal published in association with BIBRA, 29(4), 762-768 (2015-03-10)

Impact on health by nanomaterials has become a public concern with the great advances of nanomaterials for various applications. Surface coating agents are an integral part of nanoparticles, but not enough attention has been paid during toxicity tests of nanoparticles.

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Global Trade Item Number

SKU	GTIN
294136-25G	04061835554942
294136-5G	04061826601037