Cetrimonium Bromide CTAB Hexadecyltrimethylammonium Bromide : Cetyltrimethylammonium Bromide - 1000g

Cetrimonium Bromide (CTAB)
Other Names: Hexadecyltrimethylammonium Bromide, Cetyltrimethylammonium Bromide

CAS Number: 57-09-0
Sum Formula: C₁₉H₄₂BrN
Molar Mass: 364.45 g/mol
Appearance: White crystalline powder or flakes

Cetrimonium Bromide is a quaternary ammonium compound widely used as a surfactant, emulsifier, and phase transfer agent. Its strong surface-active properties make it valuable in industrial formulations, nanomaterials development, and biochemical applications.

Chemical and Physical Properties

Density: ~0.968 g/cm³ (at 20°C)
Melting Point: 238–242°C (with decomposition)
Boiling Point: Decomposes before boiling
Solubility in Water: Soluble (1–10 g/100 mL at 20°C)
Solubility in Other Solvents: Soluble in ethanol, chloroform, and methanol
Odor: Slightly ammoniacal

Applications

Biochemical Research: Commonly used to solubilize membrane proteins and isolate nucleic acids in molecular biology.

Nanotechnology and Materials Science: Serves as a structure-directing agent in the synthesis of mesoporous materials and nanoparticles.

Industrial Applications: Used as an emulsifier, anti-static agent, surfactant, and phase transfer catalyst in various formulations.

Chemical Processing: Functions as a cationic agent in reactions requiring ionic surface activity.

Safety

Signal Word: Warning

Hazard Statements:
H302: Harmful if swallowed.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
H400: Very toxic to aquatic life.

Precautionary Statements:
P261: Avoid breathing dust or fumes.
P264: Wash hands thoroughly after handling.
P273: Avoid release to the environment.
P280: Wear protective gloves, protective clothing, and eye protection.
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.

First Aid Measures

Eye Contact: Rinse immediately with plenty of water. Seek medical attention if irritation persists.
Skin Contact: Wash thoroughly with soap and water. Remove contaminated clothing.
Inhalation: Move to fresh air. Seek medical assistance if breathing becomes difficult.
Ingestion: Rinse mouth with water. Do not induce vomiting. Seek medical advice.

Handling and Storage

Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated area. Protect from moisture and light.
Handling Precautions: Avoid contact with skin, eyes, and clothing. Handle in accordance with standard safety procedures and industrial hygiene practices.