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52367

Hexadecyltrimethylammonium bromide

suitable for ion pair chromatography, LiChropur™

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:
23151817
NACRES:
NB.21
PubChem Substance ID:
329757827
EC Number:
200-311-3
Beilstein/REAXYS Number:
3598189
MDL number:
MFCD00011772
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Quality Level

100

description

cationic

assay

≥99.0% (AT)

form

powder or crystals

quality

LiChropur™

mol wt

average mol wt 62,000

aggregation number

170

technique(s)

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 Amax: 0.04, λ: 250 nm Amax: 0.03, λ: 260 nm Amax: 0.02, λ: 500 nm Amax: 0.02

HLB

11

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

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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Danger

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

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF2140
BCBR8121V

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H. Siren et al.
Mikrochimica Acta, 2 (1-3), 77-77 (1989)
A. Junker-Buchheit et al.
J. Planar Chromatogr., 1, 214-214 (1988)
E. Kwong et al.
Journal of Chromatography A, 28, 563-563 (1990)
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Global Trade Item Number

SKUGTIN
52367-10G-F04061833471838
52367-50G-F04061832548258