Description

Tetraoctadecylammonium Bromide is a high-purity quaternary ammonium salt (quat) surfactant characterized by its four long alkyl chains. This structure is critical for its role as a highly effective phase-transfer catalyst and cationic surfactant in specialized chemical syntheses and formulations. It is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and advanced materials sectors seeking to optimize reaction yields and create stable, functionalized surfaces.

Application

• Phase-Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases, particularly useful in alkylation, displacement, and polymerization reactions.
• Surfactant & Emulsifier: Acts as a cationic surfactant for the formulation of specialty emulsions, dispersants, and antistatic agents.
• Chemical Synthesis Intermediate: Serves as a key building block or templating agent in the synthesis of complex organic molecules and nanostructured materials.
• Analytical Chemistry Reagent: Used in ion-pair chromatography and as an ion-pairing agent for the separation and analysis of anionic compounds.
• Biocide & Antimicrobial Formulations: Employed as an active ingredient or co-formulant in industrial biocides and sanitizers due to its quaternary ammonium structure.
• Surface Modification: Used to create hydrophobic or cationic surface coatings on various substrates like silica, polymers, and metals.

Basic Information

Product Name	Tetraoctadecylammonium Bromide
CAS No.	63462-99-7
Molecular Formula	C72H148BrN
Molecular Weight	1085.91 g/mol
Synonyms	Trioctadecylmethylammonium Bromide; N,N,N-Trioctadecyl-N-methylammonium Bromide; Methyltrioctadecylammonium Bromide; Trioctadecylmethylammonium Bromide; TOMAB; Arquad® 18-50 (related product class); Quaternary ammonium compound, (C18)3-C1; Ammonium, trioctadecylmethyl-, bromide
EINECS	Contact for details

Quality Control

Our Tetraoctadecylammonium Bromide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.