Products > Optimize Reagents > Optimize - Salts > Hexadecyltrimethylammonium bromide
Hexadecyltrimethylammonium bromide
Synonyms: CTAB, or Cetrimonium bromide or Cetyltrimethylammonium bromide or Palmityltrimethylammonium bromide
C19H42BrN
CH3(CH2)15N(Br)(CH3)3
Mr 364.45
CAS Number [57-09-0]
EC Number 200-311-3
Beilstein Registry Number 3598189
Merck 14,2025
RTECS BQ7875000
MDL Number MFCD00011772
Purity ≥ 99.0%
UN 3077 9/PG 3
Measured pH range: 5.6 - 5.8 at 25°C
Measured Conductivity Range: 1106 - 1174 µS/cm at 25°C
Measured Refractive Index Range: 1.33570 - 1.33576 at 20°C
Solution may form clear, small needle shaped crystals upon cooling to below 25 degrees Celsius. These crystals will dissolve once the solution is warmed to above 25 degrees Celsius and the solution will remain clear once returned to 25 degrees Celsius.
Al ≤0.0005%
Ba ≤0.0005%
Bi ≤0.0005%
Ca ≤0.001%
Cd ≤0.0005%
Co ≤0.0005%
Cr ≤0.0005%
Cu ≤0.0005%
Fe ≤0.0005%
K ≤0.005%
Li ≤0.0005%
Mg ≤0.0005%
Mn ≤0.0005%
Mo ≤0.0005%
Na ≤0.005%
Ni ≤0.0005%
Pb ≤0.0005%
SO4 ≤0.005%
Sr ≤0.0005%
Zn ≤0.0005%
1. Crystal Structures of Mycolic Acid Cyclopropane Synthases from Mycobacterium tuberculosis. Chih-chin Huang, Clare V. Smith, Michael S. Glickman, William R. Jacobs Jr., and James C. Sacchettini. J. Biol. Chem., Vol. 277, Issue 13, 11559-11569, March 29, 2002.