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H5882

Sigma-Aldrich

Bromure d'hexadécyltriméthylammonium

≥98%

Synonyme(s) :

Bromure de cétrimonium, Bromure de cétyltriméthylammonium, Bromure de palmityltriméthylammonium, CTAB

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500 G
181,00 €
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319,00 €

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Changer de vue
100 G
60,50 €
500 G
181,00 €
1 KG
319,00 €

About This Item

Formule linéaire :
CH3(CH2)15N(Br)(CH3)3
Numéro CAS:
57-09-0
Poids moléculaire :
364.45
Numéro Beilstein :
3598189
Numéro CE :
200-311-3
Numéro MDL:
MFCD00011772
Code UNSPSC :
12161900
ID de substance PubChem :
24895714
Nomenclature NACRES :
NA.21

60,50 €

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Devis pour commande en gros

Description

cationic

Niveau de qualité

300

Pureté

≥98%

Forme

(solids)

Poids mol.

micellar avg mol wt 62,000

Nombre d'agrégation

170

Technique(s)

DNA extraction: suitable
RNA extraction: suitable

pH

5.0-7 (25 °C, 36.4 g/L)

CMC

0.92 mM (20-25°C)

Pf

248-251 °C (lit.)

Solubilité

H2O: 100 mg/mL

HLB

10

Chaîne SMILES 

[Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C

InChI

1S/C19H42N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1

Clé InChI

LZZYPRNAOMGNLH-UHFFFAOYSA-M

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Description générale

Hexadecyltrimethylammonium bromide, a bactericidal, is a cationic detergent. Its activity can be neutralized by soaps and anionic detergents. Cetyltrimethylammonium bromide (CTAB) is effective against Gram-positive and Gram-negative bacteria at alkaline pH.

Application

Hexadecyltrimethylammonium bromide has been used:
  • as a component in sodium phosphate buffer to homogenize tissues for determining myeloperoxidase activity
  • in the synthesis of gold nanorods with surface plasmon resonance for a comparative study
  • in the synthesis of gold nanorods to study the influence of good hexadecyltrimethylammonium bromide (CTAB) and CTAB with iodide impurities on the synthesis

Actions biochimiques/physiologiques

Hexadecyltrimethylammonium bromide or cetyltrimethylammonium bromide (CTAB) can be used to isolate plant high molecular weight DNA (by a rapid method) as well as plant DNA for use in polymerase chain reaction (PCR) analysis. It plays a key role in precipitating nucleic acids. CTAB can be used as titrant for potentiometric titration of perchlorate. It can also be used as a phase-transfer catalyst in the reduction of arenes and heterocyclic compounds. It is suitable for determining protein molecular weights in electrophoretic systems. CTAB can also be used to determine critical micelle concentration of detergents.

Caractéristiques et avantages

  • Provides enhancement of concanavalin A mediated agglutination

Clause de non-responsabilité

The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA′s Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others.

Mention d'avertissement

Danger

Classification des risques

Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2 Oral - STOT SE 3

Organes cibles

Gastrointestinal tract, Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

471.2 °F - closed cup

Point d'éclair (°C)

244 °C - closed cup

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.

Consulter la Bibliothèque de documents

Raja Gopal Rayavarapu et al.
Langmuir : the ACS journal of surfaces and colloids, 26(7), 5050-5055 (2010-03-09)
Recent reports [Smith and Korgel Langmuir 2008, 24, 644-649 and Smith et al. Langmuir 2009, 25, 9518-9524] have implicated certain hexadecyltrimethylammonium bromide (CTAB) products with iodide impurities, in the failure of a seed-mediated, silver and surfactant-assisted growth protocol, to produce
Rodrigo Jiménez-Saiz et al.
Frontiers in immunology, 11, 155-155 (2020-03-03)
Eosinophils have emerged as multifaceted cells that contribute to tissue homeostasis. However, the impact of the microbiota on their frequency and function at mucosal sites remains unclear. Here, we investigated the role of the microbiota in the regulation of enteric
K Maki et al.
Biochemical and biophysical research communications, 175(3), 768-774 (1991-03-29)
We investigated conditions for selective solubilization of the intermediate filament (IF) of BHK-21 cells, and found that a cationic detergent, cetyltrimethylammonium bromide (CTAB), was effective for rapid dissociation of IF into the monomeric form. More selective dissociation was performed with
Israa Haidar et al.
Physical chemistry chemical physics : PCCP, 18(47), 32272-32280 (2016-11-17)
The controlled assembly of anisotropic plasmonic nanoparticles (NPs) into highly SERS-active substrates remains particularly challenging for the production of long-term stable NP assemblies in suspension. In this work, we report a simple and efficient strategy to assemble gold nanorods (AuNRs)
Lonneke Onrust et al.
Veterinary research, 51(1), 56-56 (2020-04-21)
Butyrate has been used extensively as a feed additive to improve gut health and to decrease Salmonella colonization in poultry. Salmonella mainly colonizes the ceca so butyrate concentrations should be increased in this gut segment. Discrepancies on the effects of
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Questions

1–2 of 2 Questions  

  1. 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

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  2. 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

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