H6269

Sigma-Aldrich

Hexadecyltrimethylammonium bromide

for molecular biology, ≥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.31

Quality Level

grade

for molecular biology

description

cationic

assay

≥99%

form

powder or crystals

mol wt

micellar avg mol wt 62,000

aggregation number

170

pH

5.0-7 (25 °C, 36.4 g/L)

CMC

0.92
1 mM (20-25°C)

mp

248-251 °C (lit.)

solubility

H2O: 1/10 g/mL

HLB

10

suitability

suitable for DNA precipitation

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:
  • as a component of DNA extraction buffer and RNA extraction buffer
  • as a constituent of dye dissolution buffer
  • as a surfactant in gold nanorod preparation.

Packaging

100, 250, 500 g in poly bottle
1 kg in poly bottle

Biochem/physiol Actions

Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB method is an efficient, cost and time effective method of 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

The importance of the CTAB surfactant on the colloidal seed-mediated synthesis of gold nanorods
Smith DK and Korgel BA
Langmuir, 24(3), 644-649 (2008)
Investigation of the Orientation of C T A
Karaca S, et al.
Journal of Chemistry, 2013 (2012)
Two unrelated double-stranded RNA molecule patterns in Gremmeniella abietina type A code for putative viruses of the families Totiviridae and Partitiviridae
Tuomivirta TT and Hantula J
Archives of Virology, 148(12), 2293-2305 (2003)
Weijun Xu et al.
Materials science & engineering. C, Materials for biological applications, 103, 109854-109854 (2019-07-28)
Combination of different therapy modalities with multiple tumoricidal mechanisms has emerged as a promising anticancer strategy. Herein, we reported an aldehyde/catechol-functionalized hyaluronic acid (DAHA) and hydroxyethyl chitosan (HECS) decorated gold nanorod (GNR) platform for combined chemo-photothermal therapy of breast cancer....
Rolling circle amplification to screen yam germplasm for badnavirus infections and to amplify and characterise novel badnavirus genomes
Bomer M, et al.
Bio-protocol, 8(1), 11-17 (2018)

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