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52370

Sigma-Aldrich

Hexadecyltrimethylammonium bromide

≥96.0% (AT)

Synonym(s):

CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide

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$56.50
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$187.00

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100 G
$56.50
500 G
$187.00

About This Item

Linear Formula:
CH3(CH2)15N(Br)(CH3)3
CAS Number:
57-09-0
Molecular Weight:
364.45
Beilstein/REAXYS Number:
3598189
EC Number:
200-311-3
MDL number:
MFCD00011772
UNSPSC Code:
12161900
PubChem Substance ID:
329757829
NACRES:
NA.21

$56.50

Available to ship onApril 24, 2025Details

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description

cationic

Quality Level

200

assay

≥96.0% (AT)

form

powder or chunks

mol wt

364.45 g/mol

technique(s)

UV/Vis spectroscopy: suitable
electrophoresis: suitable

mp

248-251 °C (lit.)

solubility

H2O: 1 g/10 mL (warm)

application(s)

detection

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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General description

Hexadecyltrimethylammonium bromide is a titrant for the potentiometric titration of perchlorate with ionselective electrodes.[1]

Application

<ul>
<li><strong>Sensitive detection in spectroscopy:</strong> The surface-active properties of Hexadecyltrimethylammonium bromide enhance the FRET effect in Cu-doped NH2-MIL-88(Fe), used for the highly sensitive detection of 3-nitro-L-tyrosine in biomolecular spectroscopy, contributing to advancements in diagnostic techniques and chemical analysis (Xu et al., 2024).</li>
<li><strong>Stabilization of heavy metals:</strong> Utilized in the intercalation-exfoliation modification of vermiculite for the stabilization of heavy metals during the pyrolysis of solid waste and sludge, Hexadecyltrimethylammonium bromide shows potential in waste management and pollution control, contributing to safer environmental practices (Yang et al., 2024).</li>
</ul>

signalword

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_germany

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
BCCN0637
BCCL8384
BCCJ4428
BCCH4616
BCCF9294

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W Selig
Talanta, 26(11), 1061-1064 (1979-11-01)
Cetyltrimethylammonium bromide is used in the precipitation titration of perchlorate, with potentiometric end-point detection. A perchlorate, fluoroborate or nitrate ion-selective electrode may be used. The method is more sensitive than the commonly used titration with tetraphenylarsonium chloride. It can be
See Wee Chee et al.
Nature communications, 10(1), 2831-2831 (2019-06-30)
At elevated temperatures, bimetallic nanomaterials change their morphologies because of the interdiffusion of atomic species, which also alters their properties. The Kirkendall effect (KE) is a well-known phenomenon associated with such interdiffusion. Here, we show how KE can manifest in
Lourdes Pérez et al.
European journal of medicinal chemistry, 44(5), 1884-1892 (2008-12-17)
Biocompatible cationic surfactants from the amino acid lysine (hydrochloride salts of N(epsilon)-lauroyl lysine methyl ester, N(epsilon)-myristoyl lysine methyl ester and N(epsilon)-palmitoyl lysine methyl ester) have been prepared in high yields by lysine acylation in epsilon position with three natural saturated
Sebastien Fraud et al.
Antimicrobial agents and chemotherapy, 52(12), 4478-4482 (2008-10-08)
The biocide chlorhexidine (CHX) as well as additional membrane-active agents were shown to induce expression of the mexCD-oprJ multidrug efflux operon, dependent upon the AlgU stress response sigma factor. Hyperexpression of this efflux system in nfxB mutants was also substantially
Lin Wang et al.
Journal of hazardous materials, 244-245, 681-688 (2012-11-28)
Photocatalytic reduction of aqueous Cr(VI) was successfully achieved on nanostructured SnIn(4)S(8). The SnIn(4)S(8) particles with flower-like nanostructure were synthesized via a facile solvothermal method. UV-vis diffuse reflectance spectra (DRS) indicated that the SnIn(4)S(8) particles had strong absorption in visible region
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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