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Hexadecyltrimethylammonium bromide

SIAL/52367 - suitable for ion pair chromatography, LiChropur™

Synonym: CTAB; Cetrimonium bromide; Cetyltrimethylammonium bromide; Palmityltrimethylammonium bromide

CAS Number: 57-09-0
Empirical Formula (Hill Notation): C19H42BrN
Molecular Weight: 364.45
EC Number: 200-311-3
MDL Number: MFCD00011772
Linear Formula: CH3(CH2)15N(Br)(CH3)3
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-52367-10G-F 10 g
 $204.00
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45-52367-50G-F 50 g
 $786.00
1/EA		 Add To Favorites

 

λ 10 % in methanol
aggregation number 170
assay ≥99.0% (AT)
CMC 0.92
description cationic
form powder or crystals
HLB 11
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
mol wt average mol wt 62,000
mp 248-251 °C (lit.)
quality LiChropur™
Quality Level 100 
SMILES string [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C
solubility H2O: soluble 36.4 g/L at 20 °C (completely)
suitability corresponds to standard for filter test
technique(s) ion pair chromatography: suitable
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
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.
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.
Legal Information: LiChropur is a trademark of Merck KGaA, Darmstadt, Germany
Other Notes: Additive for ion-pair chromatography; Ion-pair reagent for TLC
Purity ≥99.0% (AT)
mp 248-251 °C (lit.)
UNSPSC 23151817

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