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H5882

Hexadecyltrimethylammonium bromide

Name: Hexadecyltrimethylammonium bromide
Brand: SIGMA

≥98%

Synonym(s):

CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide

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About This Item

Linear Formula:

CH₃(CH₂)₁₅N(Br)(CH₃)₃

CAS Number:

57-09-0

Molecular Weight:

364.45

UNSPSC Code:

12161900

NACRES:

NA.21

PubChem Substance ID:

24895714

EC Number:

200-311-3

Beilstein/REAXYS Number:

3598189

MDL number:

MFCD00011772

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Properties

description

cationic

Quality Level

300

assay

≥98%

form

(solids)

mol wt

micellar avg mol wt 62,000

aggregation number

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)

mp

248-251 °C (lit.)

solubility

H₂O: 100 mg/mL

density

2.30 g/cm³

HLB

application(s)

genomic analysis

SMILES string

[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

InChI key

LZZYPRNAOMGNLH-UHFFFAOYSA-M

Description

General description

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

Biochem/physiol Actions

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.

Features and Benefits

Provides enhancement of concanavalin A mediated agglutination

Disclaimer

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.