Cetyl Trimethyl Ammonium Bromide

Cetyl Trimethyl Ammonium Bromide

Price Or Price Range INR
Unit of Measure Kilograms/Kilograms
Unit of Price Kilograms/Kilograms
CAS No 57-09-0
Product Type Laboratory chemicals
Application Industrial
Properties Physical State: Crystalline powder Color: white Odor: weak odor pH: 5 - 7 (10 g/l water (20 C)) Vapor Pressure: Negligible Evaporation Rate: Negligible Molecular Formula: C19H42BrN
HS Code 2923 90 00
Main Export Market(s) Central America Eastern Europe Asia South America Middle East Western Europe Australia Africa
Main Domestic Market All India
Supply Ability 1000 Per Month
Delivery Time 1 Week
Cetyl Trimethyl Ammonium Bromide (CTMAB) also known as Cetrimonium bromide is a highly active quaternary ammonium surfactant that is commonly used as an antiseptic agent against bacteria and fungi. It physically appears as a white colored powder that shows high stability at room temperature but it is highly incompatible with strong oxidizing agents. It can also be used in various applications such as biological, medical, and many more.

Cetyltrimethylammonium Bromide Properties:

  • Chemical formula: C19H42BrN
  • Molar mass: 364.45 g/mol
  • Appearance: white powder
  • Melting point: 240.0 degree centigrade
  • CAS Number: 57-09-0
  • Synonyms: Cetrimide, CTAB
  • Solubility: Soluble in water, Acetone, Ether, Benzene

Cetyl Trimethyl Ammonium Bromide Features:

  • The other names by which this compound is known are CTAB, Cetyltrimethylammonium bromide and Hexadecyltrimethylammonium bromide.
  • Plant DNA can be isolated using this cationic surfactant for use in PCR analysis.
  • Precipitation of nucleic acid has been achieved with it.
  • It can be used to discover protein molecular weights in electrophoretic systems.
  • Its other application lies in determining critical micelle concentration of detergents.

Uses: Cationic detergent suitable for the isolation of high molecular weight DNA in plants and other organisms.

Frequently Asked Questions:


1. What is the function of cetyl trimethyl ammonium bromide?

Ans: It is use for forming buffer solution that enables to extract DNA. Also, it is being used for the preparation of gold nanoparticles which can be made into a number of shapes such as: spheres, rods, and bipyramids.

2. What type of detergent is cetyl trimethyl ammonium bromide?

Ans: A cationic detergent, cetyltrimethylammonium bromide (CTMAB), selectively dissociates the intermediate filament of the fibroblast.

3. What is cetyl trimethyl ammonium bromide method generally used for?

Ans: It is a surfactant useful for isolation of DNA from tissues containing high amounts of polysaccharides.

4. What are the risks of CTAB?

Ans: It causes eye burns. Inhalation can be harmful if inhaled. It causes respiratory tract irritation. Skin may be harmful if absorbed through skin.

5. Why CTAB is used in nanoparticles?

Ans: It is a common surfactant used in nanoparticles synthesis. It has a 16-carbon as a long tail and an ammonium head group with three methyl groups attached. Here, CTAB can be used for the removal of heavy metals from wastewater.