57-09-0

Name Hexadecyl trimethyl ammonium bromide
CAS 57-09-0
EINECS(EC#) 200-311-3
Molecular Formula C19H42BrN
MDL Number MFCD00011772
Molecular Weight 364.45
MOL File 57-09-0.mol

Chemical Properties

Appearance white powder
Melting point  248-251 °C(lit.)
bulk density 390kg/m3
density  1.1107 (rough estimate)
refractive index  1.5260 (estimate)
Fp  244 °C
storage temp.  Store at RT.
solubility  H2O: 50 mg/mL
form  powder
color  white
Odor Odorless
PH 5.0-7.0 (25℃, 0.1M in H2O)
PH Range 5 - 7
Stability: Stable. Incompatible with strong oxidizing agents. Protect from moisture.
Water Solubility  13 g/L (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.05
Detection Methods T,NMR
Merck  14,2025
BRN  3598189
Cosmetics Ingredients Functions PRESERVATIVE
ANTISTATIC
SURFACTANT - EMULSIFYING
ANTIMICROBIAL
Cosmetic Ingredient Review (CIR) Hexadecyl trimethyl ammonium bromide (57-09-0)
InChI 1S/C19H42N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1
InChIKey LZZYPRNAOMGNLH-UHFFFAOYSA-M
SMILES [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C
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.
CAS DataBase Reference 57-09-0(CAS DataBase Reference)
EPA Substance Registry System 57-09-0(EPA Substance)

Safety Data

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)Health Hazard (GHS08)Environment (GHS09)
GHS05,GHS07,GHS08,GHS09
Signal word  Danger
Hazard statements  H302-H315-H318-H335-H373-H410
Precautionary statements  P273-P280-P301+P312-P302+P352-P305+P351+P338-P314
Hazard Codes  Xn,N
Risk Statements 
R22:Harmful if swallowed.
R37/38:Irritating to respiratory system and skin .
R41:Risk of serious damage to eyes.
R50:Very Toxic to aquatic organisms.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S39:Wear eye/face protection .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S37/39:Wear suitable gloves and eye/face protection .
S60:This material and/or its container must be disposed of as hazardous waste .
S36:Wear suitable protective clothing .
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  BQ7875000
3
TSCA  Yes
REACH Registrations Active
HazardClass  9
PackingGroup  III
HS Code  29239000
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1
Eye Dam. 1
Skin Irrit. 2
STOT RE 2 Oral
STOT SE 3
Toxicity
LD50 in mice, rats (mg/kg): 32.0, 44.0 i.v. (Isomaa, Bjondahl)

Hazard Information

Material Safety Data Sheet(MSDS)

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