H9151

Sigma-Aldrich

Hexadecyltrimethylammonium bromide

BioXtra, ≥99%

Synonym(s):
CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide
Linear Formula:
CH3(CH2)15N(Br)(CH3)3
CAS Number:
Molecular Weight:
364.45
Beilstein/REAXYS Number:
3598189
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

description

cationic

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

anion traces

sulfate (SO42-): ≤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

10

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

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Related Categories

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

Packaging

25, 100, 250 g in glass bottle

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.

Signal Word

Danger

hazcat

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

Target Organs

Gastrointestinal tract, Respiratory system

storage_class_code

11 - Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

471.2 °F - closed cup

Flash Point(C)

244 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

Fast and simple detection of bovine serum albumin concentration by studying its interaction with gold nanorods
Shajari D, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 543, 118-125 (2018)
Design of nanoparticles for generation and stabilization of CO2-in-brine foams with or without added surfactants
Worthen AJ, et al.
arXiv (2018)
The sustainable synthesis of peptidomimetics via chemoenzymatic tandem oxidation-Ugi reaction
Madej A, et al.
Royal Society of Chemistry Advances, 8(50), 28405-28413 (2018)
Investigation of the Orientation of C T A
Karaca S, et al.
Journal of Chemistry, 2013 (2012)
Modification of a CTAB DNA extraction protocol for plants containing high polysaccharide and polyphenol components
Porebski S, et al.
Plant Molecular Biology Reporter, 15(1), 8-15 (1997)

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