Skip to Content
Merck

294136

Tetraoctylammonium bromide

98%, solid

Synonym(s):

TOAB

Sign In to View Organizational & Contract Pricing.

Select a Size

All Photos(1)

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

Product Name

Tetraoctylammonium bromide, 98%

InChI key

QBVXKDJEZKEASM-UHFFFAOYSA-M

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

SMILES string

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

assay

98%

form

solid

mp

95-98 °C (lit.)

Quality Level

200

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

General description

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

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H315,H318

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCK5141
BCCG0539
BCCC8078
BCBW9358
BCBP8933V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
Surface binding properties of tetraoctylammonium bromide-capped gold nanoparticles.
Thomas K G, et al.
Langmuir, 18(9), 3722-3727 (2002)
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.
Motao Zhu et al.
ACS nano, 14(3), 3703-3717 (2020-02-15)
Engineered nanoparticles could trigger inflammatory responses and potentiate a desired innate immune response for efficient immunotherapy. Here we report size-dependent activation of innate immune signaling pathways by gold (Au) nanoparticles. The ultrasmall-size (<10 nm) Au nanoparticles preferentially activate the NLRP3
Shubo Tian et al.
Nature communications, 6, 8667-8667 (2015-10-21)
Revealing structural isomerism in nanoparticles using single-crystal X-ray crystallography remains a largely unresolved task, although it has been theoretically predicted with some experimental clues. Here we report a pair of structural isomers, Au38T and Au38Q, as evidenced using electrospray ionization
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service