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Hexadecyltrimethylammonium bromide

Name: Hexadecyltrimethylammonium bromide
Brand: SIAL
Price: 211 USD
Availability: InStock

suitable for ion pair chromatography, LiChropur^™

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Synonym(s):

CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide

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Size/SKU	Availability	Price
10 g	Available to ship TODAY	$211.00
50 g	Available to ship TODAY	$812.00

About This Item

Linear Formula:

CH₃(CH₂)₁₅N(Br)(CH₃)₃

CAS Number:

57-09-0

Molecular Weight:

364.45

UNSPSC Code:

23151817

NACRES:

NB.21

PubChem Substance ID:

329757827

EC Number:

200-311-3

Beilstein/REAXYS Number:

3598189

MDL number:

MFCD00011772

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Properties

description

cationic

Quality Segment

100

assay

≥99.0% (AT)

form

powder or crystals

quality

LiChropur^™

mol wt

average mol wt 62,000

aggregation number

170

technique(s)

HPLC: suitable, LC/MS: suitable, ion chromatography: suitable, ion pair chromatography: suitable

CMC

0.92

mp

248-251 °C (lit.)

solubility

H₂O: soluble 36.4 g/L at 20 °C (completely)

λ

10 % in methanol

UV absorption

λ: 240 nm A_max: 0.04, λ: 250 nm A_max: 0.03, λ: 260 nm A_max: 0.02, λ: 500 nm A_max: 0.02

HLB

suitability

corresponds to standard for filter test

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 (CTAB) is a quaternary ammonium salt containing one long hydrophobic alkyl chain called amphiphile. The hydrophobic ions interact forming discrete aggregates possessing a hydrophobic core and a polar surface, called micelles in polar solution.

Application

CTAB was used in preparing buffer solutions prepared during the determination of organic acids in port wine capillary zone electrophoresis using indirect UV detection with 2,6-pyridinedicarboxylic acid.

Other Notes

Additive for ion-pair chromatography; Ion-pair reagent for TLC

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

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1 of 1

This Item	137142	H6269	52365
Supelco 52367 Hexadecyltrimethylammonium bromide	SAFC 137142 Hexadecyltrimethylammonium bromide	Sigma-Aldrich H6269 Hexadecyltrimethylammonium bromide	Sigma-Aldrich 52365 Hexadecyltrimethylammonium bromide
description suitable for ion pair chromatography, LiChropur^™	description EMPROVE^® ESSENTIAL, meets NF	description Molecular Biology, ≥99%	description BioUltra, Molecular Biology, ≥99.0% (AT)
technique(s) ion pair chromatography: suitable	technique(s) -	technique(s) -	technique(s) -
form powder or crystals	form powder	form powder or crystals	form powder or crystals
assay ≥99.0% (AT)	assay -	assay ≥99%	assay ≥99.0% (AT)
suitability corresponds to standard for filter test	suitability -	suitability suitable for DNA precipitation	suitability -
aggregation number 170	aggregation number -	aggregation number 170	aggregation number 170
mol wt average mol wt 62,000	mol wt -	mol wt micellar avg mol wt 62,000	mol wt micellar avg mol wt 62,000

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Pictograms

GHS08,GHS05,GHS07,GHS09

Signal Word

Danger

Hazard Codes

H302,H315,H318,H335,H373,H410

Precautionary Statements

P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P314

Hazard Classifications

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

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

471.2 °F - closed cup

Flash Point (°C)

244 °C - closed cup

PPE (personal protective equipment)

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

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Certificates of Analysis (COA)

Lot/Batch Number

BCCP1495

BCBR8121V

BCCF2140

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