Key Documents

View All Documentation

H9151

Hexadecyltrimethylammonium bromide

Name: Hexadecyltrimethylammonium bromide
Brand: SIGMA

BioXtra, ≥99%

Synonym(s):

CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide

Select a Size

Change View

About This Item

Linear Formula:

CH₃(CH₂)₁₅N(Br)(CH₃)₃

CAS Number:

57-09-0

Molecular Weight:

364.45

UNSPSC Code:

12352201

NACRES:

NA.21

PubChem Substance ID:

24895846

EC Number:

200-311-3

Beilstein/REAXYS Number:

3598189

MDL number:

MFCD00011772

Technical Service

Need help? Our team of experienced scientists is here for you.

Let Us Assist

Properties

description

cationic

Quality Level

200

product line

BioXtra

assay

≥99%

form

crystalline, powder or crystals

mol wt

micellar avg mol wt 62,000

aggregation number

170

impurities

≤0.001% Phosphorus (P), ≤0.1% Insoluble matter

ign. residue

≤0.1%

pH

5.0-7 (25 °C, 36.4 g/L)

CMC

0.92 mM (20-25°C)

mp

248-251 °C (lit.)

solubility

H₂O: 0.1 M, clear, colorless to faintly yellow

density

(2,30 g/cm3)

anion traces

sulfate (SO₄^2-): ≤0.05%

cation traces

Al: ≤0.0005%, Ca: ≤0.0005%, Cu: ≤0.0005%, Fe: ≤0.0005%, K: ≤0.005%, Mg: ≤0.0005%, Na: ≤0.005%, Pb: ≤0.001%, Zn: ≤0.0005%

HLB

application(s)

(DNA extraction)

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

Application

Hexadecyltrimethylammonium bromide has been used:

in gold nanorods preparation
as an additive in Ugi reaction
as a surfactant
for homogenisation of intestinal tissues for myeloperoxidase activity

Biochem/physiol Actions

Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB is employed for extraction of DNA. CTAB method is efficient, cost and time effective for DNA extraction. CTAB is used as a shaping material and reducing agent for nanoparticle generation.