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Octadecy trimethyl ammonium bromide

CAS No.
1120-02-1
Chemical Name:
Octadecy trimethyl ammonium bromide
Synonyms
OCTADECYLTRIMETHYLAMMONIUM BROMIDE;183B;OctMAB;[M3C18N]Br;FENTACARE 1831B;Einecs 214-294-5;Stearyl Trimethyl Am;Steartrimonium bromide;StearylTrimethylAmmoiumb;Stearyltrimethylaminium·bromide
CBNumber:
CB9402472
Molecular Formula:
C21H46BrN
Molecular Weight:
392.5
MDL Number:
MFCD00043171
MOL File:
1120-02-1.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-31 17:49:05

Octadecy trimethyl ammonium bromide Properties

Melting point ~250 °C (dec.) (lit.)
Boiling point 543.31℃[at 101 325 Pa]
vapor pressure 0Pa at 25℃
storage temp. Inert atmosphere,Room Temperature
solubility Limited solubility
form powder to crystal
color White to Almost white
Water Solubility soluble
BRN 3574090
Stability Stable. Hygroscopic. Incompatible with strong oxidizing agents. Protect from moisture.
Cosmetics Ingredients Functions HAIR CONDITIONING
PRESERVATIVE
ANTISTATIC
InChI InChI=1S/C21H46N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(2,3)4;/h5-21H2,1-4H3;1H/q+1;/p-1
InChIKey SZEMGTQCPRNXEG-UHFFFAOYSA-M
SMILES C(CC[N+](C)(C)C)CCCCCCCCCCCCCCC.[Br-]
LogP 3.06 at 25℃
CAS DataBase Reference 1120-02-1(CAS DataBase Reference)
EWG's Food Scores 4
FDA UNII BPW1DD4IZ8
EPA Substance Registry System Trimethyl-1-octylammonium bromide (1120-02-1)
UNSPSC Code 12352116
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)Environment (GHS09)
GHS05,GHS07,GHS09
Signal word  Danger
Hazard statements  H302-H315-H317-H318-H410
Precautionary statements  P261-P264-P273-P280-P305+P351+P338+P310-P391
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
TSCA  TSCA listed
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
Skin Sens. 1
REACH Registrations Active
NFPA 704
0
2 0

Octadecy trimethyl ammonium bromide price More Price(60)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 359246 Trimethyloctadecylammonium bromide 98% 1120-02-1 10g $124 2026-04-30 Buy
Sigma-Aldrich 359246 Trimethyloctadecylammonium bromide 98% 1120-02-1 50g $341 2026-04-30 Buy
TCI Chemical S0364 Trimethylstearylammonium Bromide >98.0%(T) 1120-02-1 25g $125 2026-04-30 Buy
Usbiological 256091 OctMAB Asreported 1120-02-1 10mg $290 2026-06-03 Buy
Usbiological 241089 Octadecyltrimethylammonium Bromide 99+% ≥99%(Titration) 1120-02-1 10g $134 2026-06-03 Buy
Product number Packaging Price Buy
359246 10g $124 Buy
359246 50g $341 Buy
S0364 25g $125 Buy
256091 10mg $290 Buy
241089 10g $134 Buy

Octadecy trimethyl ammonium bromide Chemical Properties, Uses, Production

Chemical Properties

white powder

Uses

A Dynamin I inhibitor.

Uses

Trimethyloctadecylammonium bromide (C18TAB) is generally used as a surfactant. It can be used in the preparation of polyoxomolybdate-surfactant hybrid layered crystals. It can also be used as a surface modifier in the liquid chromatography.

Flammability and Explosibility

Not classified

Purification Methods

Crystallise it from EtOH or H2O (solubility is 1 in 1000parts). It is very soluble in Me2CO. It is a bactericide. [Sheldon et al. J Am Chem Soc 68 754 1946, Grieger & Kraus J Am Chem Soc 70 3805, 38007, Beilstein 4 IV 827.]

Octadecy trimethyl ammonium bromide Preparation Products And Raw materials

Raw materials

Preparation Products

Global Suppliers ( 405)
Supplier Tel Email Country ProdList Advantage
Xiamen Pioneer Technology Co., Ltd 0592-5625977 13850073005 13939264@qq.com China 50 64
Jiangyin Baoyuan Chemical Co.,Ltd 0510-86326538 13915249541 395368097@qq.com China 6 58
Hangzhou Aiken New Materials Co., Ltd 15258847994 andriy@akkochemical.com China 242 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
future industrial shanghai co., ltd 400-0066400 13621662912 sales@jonln.com China 1989 65
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64

View Latest Price from Octadecy trimethyl ammonium bromide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Octadecy trimethyl ammonium bromide pictures 2026-09-18 Octadecy trimethyl ammonium bromide
1120-02-1
1kg/Bag ≥98% 50 T/Month Hebei Qujie Technology Co., Ltd.
Stearyltrimethylammonium bromide (STAB) pictures 2026-09-18 Stearyltrimethylammonium bromide (STAB)
1120-02-1
$5.00 1kg ≥99% 5000mt/year Jinan Finer Chemical Co., Ltd
Octadecy trimethyl ammonium bromide pictures 2026-08-12 Octadecy trimethyl ammonium bromide
1120-02-1
$78.00 1KG 98% 1-10mt Baoji Guokang Healthchem Co., Ltd.
Octedecyl trimethyl ammonium bromide Stearyltrimethylaminium·bromide Trimethyl(octadecyl)aminium·bromide 1-Octadecanaminium, N,N,N-trimethyl-, bromide 1-Octadecanaminium, N,N,N-trimethyl-, bromide (1:1) Einecs 214-294-5 Trimethyloctadecylammonium bromide,Octadecyltrimethylammonium bromide Stearyl Trimethyl Am OctMAB FENTACARE 1831B Octadecyltrimethylammonium Bromide Stearyltrimethylammonium Bromide Trimethyloctadecylammonium Bromide OTAB STAB N,N,N-TriMethyloctadecan-1-aMiniuM broMide STAB)Stearyl TriMethyl AMMoiuM b StearylTrimethylAmmoiumb Trimethyloctadecylammonium bromide 98% Trimethyloctadecylammonium bromide Vetec(TM) reagent grade, 98% [M3C18N]Br ammonium,trimethyloctadecyl-,bromide Trimethylstearylammonunium Bromide n,n,n-trimethyl-1-octadecanaminiubromide N,N,N-trimethyl-1-octadecanaminiumbromide STEARYLTRIMETHYLAMMONIUM BROMIDE N-OCTADECYLTRIMETHYLAMMONIUM BROMIDE TRIMETHYLSTEARYLAMMONIUM BROMIDE TRIMETHYLOCTADECYLAMMONIUM BROMIDE Steartrimonium bromide Stearyl Trimethyl Ammoium bromide OCTADECYLTRIMETHYLAMMONIUM BROMIDE 97+% Octadecy trimethyl ammonium bromide stearyltrimethylammonium bromide (stab) trimethyl(octadecyl)azanium:bromide (STAB) Trimethyloctadecylammonium bromide STAB Octadecy trimethyl ammonium bromide Trimethylstearylammonium Bromide > Trimethyloctadecylammonium bromide, 99%, for bio Octadecy trimethyl ammonium bromide(STAB) Octadecy trimethyl ammonium bromide ISO 9001:2015 REACH OcTMAB, dynamin I and dynamin II inhibitor Steartrimonium Bromide、Octadecyl Trimethyl Ammonium Bromide、STAB 183B OCTADECYLTRIMETHYLAMMONIUM BROMIDE 1120-02-1 1120-20-1 112-02-1 CH3CH217NBrCH33 C21H46NHBr CH3CH217CH33NBr C27H50BrN C21H46NBr C21H46BrN C18H37CH33NBr Phase Transfer Catalysts Synthetic Reagents Ammonium Salts Ammonium Bromides (Quaternary) Quaternary Ammonium Compounds Quaternary Ammonium Compounds Aliphatics