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57-09-0 - (1-Hexadecyl)trimethylammonium bromide, 98% - Cetrimonium bromide - Cetyltrimethylammonium bromide - A15235 - Alfa Aesar

A15235 (1-Hexadecyl)trimethylammonium bromide, 98%

Codice CAS
57-09-0
Sinonimi
Cetrimonium bromide
Cetyltrimethylammonium bromide

Dimensioni Prezzo ($) Quantità Disponibilità
100g 37,20
500g 112,00
5000g 631,00
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(1-Hexadecyl)trimethylammonium bromide, 98%

MDL
MFCD00011772
EINECS
200-311-3

Proprietà chimiche

Formula
CH3(CH2)15N(CH3)3Br
Peso formula
364.46
Punto di fusione
ca 245° dec.
Punto di infiammabilità
244°(471°F)
Sensibilità
Hygroscopic
Solubilità
Soluble in alcohol, chloroform and water. Slightly soluble in acetone. Insoluble in diethyl ether and benzene.

Applicazioni

(1-Hexadecyl)trimethylammonium bromide is a cationic surfactant in hair conditioning products. It acts as a phase-transfer catalyst for the preparation of polyamide, polycarbonate and polythiocarbonate. It facilitates ligand-free palladium salt-catalyzed Heck and Suzuki cross-coupling reactions in water. It is an active component of the topical antiseptic cetrimide and used in household products such as shampoos and cosmetics. As a buffer solution, it is involved in the extraction of DNA as well as in the synthesis of gold nanoparticles and silican nanoparticles.

Note

Hygroscopic. Store in an airtight container. Incompatible with bases and strong oxidizing agents.

Letteratura

Surfactant-type catalyst (see Appendix 2) with many applications:

O-Alkylation of alcohols and phenols; see 2,6-Dimethyl­phenol, A11947. Surfactant-assisted permanganate oxidations: Can. J. Chem., 67, 1381 (1989). Reduction of alkyl halides to alkanes using zinc powder in micelles: Synth. Commun., 19, 1649 (1989). Control of ortho-para ratio in the bromination of anilines: Tetrahedron Lett., 30, 6209 (1989). Also facilitates ligand-free palladium salt-catalyzed Heck and Suzuki cross-coupling reactions in water: Tetrahedron Lett., 46, 3357 (2005).

Chatterjee, S.; Castro, M.; Feller, J. F. Tailoring selectivity of sprayed carbon nanotube sensors (CNT) towards volatile organic compounds (VOC) with surfactants. Food Chem. 2015, 168, 262-269.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H302-H315-H318-H335

Harmful if swallowed. Causes skin irritation. Causes serious eye damage. May cause respiratory irritation.

Dichiarazioni precauzionali: P273-P280-P305+P351+P338-P337+P313-P391-P501a

Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Collect spillage. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,2025
Beilstein
3598189
Classe di rischio
9
Gruppo di imballaggio
III
Codice tariffe armonizzato
2923.90
TSCA
Yes
RTECS
BQ7875000

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