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Hexadecyl trimethyl ammonium bromide

CAS No.57-09-0
Chemical Name:Hexadecyl trimethyl ammonium bromide
CBNumber:CB5743258
Molecular Formula:C19H42BrN
Formula Weight:364.45
MOL File:57-09-0.mol

Hexadecyl trimethyl ammonium bromide Property

Melting point 248-251 °C(lit.)
bulk density 390kg/m3
Density 1.1107 (rough estimate)
refractive index 1.5260 (estimate)
Flash point 244 °C
storage temp. Store below +30°C.
solubility H₂O: 50 mg/mL
form powder
color white
PH 5.0-7.0 (25℃, 0.1M in H2O)
Odor Odorless
PH Range 5 - 7
Water Solubility 13 g/L (20 ºC)
Sensitive Hygroscopic
λmax λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.05
Merck 14,2025
BRN 3598189
Stability Stable. Incompatible with strong oxidizing agents. Protect from moisture.
InChIKey LZZYPRNAOMGNLH-UHFFFAOYSA-M
CAS DataBase Reference 57-09-0(CAS DataBase Reference)
EWG's Food Scores 5
FDA UNII L64N7M9BWR
EPA Substance Registry System Cetyl trimethyl ammonium bromide (57-09-0)
UNSPSC Code 41116107
NACRES NB.21

Safety

Hazard Codes :Xn,N
Risk Statements :22-37/38-41-50-50/53-36/37/38-48/22
Safety Statements :26-39-61-37/39-60-36
RIDADR :UN 3077 9/PG 3
WGK Germany :3
RTECS :BQ7875000
F :3
TSCA :Yes
HazardClass :9
PackingGroup :III
HS Code :29239000
Toxicity :LD50 in mice, rats (mg/kg): 32.0, 44.0 i.v. (Isomaa, Bjondahl)

NFPA 704:

	3
3		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H315-H318-H335-H373-H410
Precautionary statements P273-P280-P301+P312-P302+P352-P305+P351+P338-P314

Hexadecyl trimethyl ammonium bromide Price More Price(44)

Brand: Sigma-Aldrich(India)
Product number: H9151
Product name : Hexadecyltrimethylammonium bromide
Purity: BioXtra, ≥99%
Packaging: 25G
Price: ₹8367.73
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: PHR2688
Product name : Cetrimonium Bromide
Purity: Pharmaceutical Secondary Standard; Certified Reference Material
Packaging: 1G
Price: ₹16995.25
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: H9151
Product name : Hexadecyltrimethylammonium bromide
Purity: BioXtra, ≥99%
Packaging: 100G
Price: ₹19755.63
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: H6269
Product name : Hexadecyltrimethylammonium bromide
Purity: for molecular biology, ≥99%
Packaging: 100G
Price: ₹8930.63
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: H9151
Product name : Hexadecyltrimethylammonium bromide
Purity: BioXtra, ≥99%
Packaging: 250G
Price: ₹41113.35
Updated: 2022/06/14
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Hexadecyl trimethyl ammonium bromide Chemical Properties,Usage,Production

Chemical Properties White powder. Soluble in water, alcohol, and chloroform.
Uses Hexadecyltrimethylammonium Bromide (CTAB) is a cationic surfactant used as a template in the synthesis of Mesoporous γ-Fe2O3.
Uses antiinfectant
Uses cetrimonium bromide is a quaternary ammonium salt that can prevent the proliferation of bacteria, fungi, and yeast in cosmetic preparation, while also act as an emulsifying agent.
Uses A cationic detergent used in the isolation of high molecular weight DNA.
Definition ChEBI: The organic bromide salt that is the bromide salt of cetyltrimethylammonium; one of the components of the topical antiseptic cetrimide.
General Description Hexadecyltrimethylammonium bromide is a titrant for the potentiometric titration of perchlorate with ionselective electrodes.
Biochem/physiol Actions Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB is employed for extraction of DNA. CTAB method is efficient, cost and time effective for DNA extraction. CTAB is used as a shaping material and reducing agent for nanoparticle generation.
Purification Methods Crystallise it from EtOH, EtOH/*benzene or from wet acetone after extracting twice with pet ether. Shake it with anhydrous diethyl ether, filter and dissolve it in a little hot MeOH. After cooling in the refrigerator, the precipitate is filtered off at room temperature and re-dissolved in MeOH. Anhydrous ether is added and, after warming to obtain a clear solution, it is cooled and the crystalline material is collected. [Dearden & Wooley J Phys Chem 91 2404 1987, Hakemi et al. J Am Chem Soc 91 120 1987, Beilstein 4 IV 819.]
References [1] Liu, Tingting et al. “Hexadecyl trimethyl ammonium bromide assisted growth of NiCo2O4@reduced graphene oxide/ nickel foam nanoneedle arrays with enhanced performance for supercapacitor electrodes?.” RSC Advances 7 (2022): 4029–4041.