Saltar al contenido
MilliporeSigma
Todas las fotos(1)

Documentos clave

Ver Toda la documentación

294136

Sigma-Aldrich

Tetraoctylammonium bromide

98%

Sinónimos:

TOAB

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización

Seleccione un Tamaño

5 G
$40.00
25 G
$128.00

$40.00

Disponible para envío el16 de abril de 2025Detalles

Solicitar un pedido a granel
Todas las fotos(1)

Seleccione un Tamaño

Cambiar Vistas
5 G
$40.00
25 G
$128.00

About This Item

Fórmula lineal:
[CH3(CH2)7]4N(Br)
Número de CAS:
14866-33-2
Peso molecular:
546.79
Beilstein:
4169176
Número CE:
238-936-9
Número MDL:
MFCD00011863
Código UNSPSC:
12352107
ID de la sustancia en PubChem:
24857704
NACRES:
NA.22

$40.00

Disponible para envío el16 de abril de 2025Detalles

Solicitar un pedido a granel

Nivel de calidad

200

Ensayo

98%

Formulario

solid

mp

95-98 °C (lit.)

cadena SMILES

[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

Clave InChI

QBVXKDJEZKEASM-UHFFFAOYSA-M

¿Está buscando productos similares? Visita Guía de comparación de productos

Categorías relacionadas

Descripción general

Tetraoctylammonium bromide is an organic surface coating agent commonly used to control the size and shape during nanoparticle synthesis.[1]

Aplicación

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.[2] It is also used to prepare TOAB-capped gold nanoparticles, which shows well-defined plasmon absorption compared to thiol-capped nanoparticles.[3]

Pictogramas

Corrosion
GHS05

Palabra de señalización

Danger

Frases de peligro

H315,H318

Clasificaciones de peligro

Eye Dam. 1 - Skin Irrit. 2

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

213.8 °F - closed cup

Punto de inflamabilidad (°C)

101 °C - closed cup

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number
BCCK5141
BCCG0539
BCCC8078
BCBW9358
BCBP8933V

¿No ve la versión correcta?

Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.

Busque por un COA

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

Los clientes también vieron

Slide 1 of 3

1 of 3

Tetrapentylammonium bromide ≥99%

Sigma-Aldrich

241970

Tetrapentylammonium bromide

1-Dodecanethiol ≥98%

Sigma-Aldrich

471364

1-Dodecanethiol

Bromuro de tetraheptilamonio ≥99.0% (AT)

Sigma-Aldrich

87301

Bromuro de tetraheptilamonio

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)
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
Ver todos los artículos relacionados

Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico