Hexadecyl trimethyl ammonium bromide
- CAS No.
- 57-09-0
- Chemical Name:
- Hexadecyl trimethyl ammonium bromide
- Synonyms
- CTAB;CETYLTRIMETHYLAMMONIUM BROMIDE;CETRIMONIUM BROMIDE;HEXADECYLTRIMETHYLAMMONIUM BROMIDE;CTMAB;HTAB;CTMB;CTABR;cetarol;centimide
- CBNumber:
- CB5743258
- Molecular Formula:
- C19H42BrN
- Molecular Weight:
- 364.45
- MDL Number:
- MFCD00011772
- MOL File:
- 57-09-0.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Cetrimonium Bromide Pharmaceutical Secondary Standard; Certified Reference Material | PHR2688 | 1G | $233 |
| Hexadecyltrimethylammonium bromide for synthesis | 8.14119 | 100g | $34.5 |
| Hexadecyltrimethylammonium bromide for synthesis | 8.14119 | 500g | $58.3 |
| Hexadecyltrimethylammonium bromide suitable for ion pair chromatography, LiChropur? | 52367 | 10g | $204 |
| Hexadecyltrimethylammonium bromide suitable for ion pair chromatography, LiChropur? | 52367 | 50g | $786 |
| More product size | |||
| Melting point | 248-251 °C(lit.) |
|---|---|
| bulk density | 390kg/m3 |
| Density | 1.1107 (rough estimate) |
| refractive index | 1.5260 (estimate) |
| Flash point | 244 °C |
| storage temp. | Store below +30°C. |
| 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 |
| Water Solubility | 13 g/L (20 ºC) |
| λmax |
λ: 260 nm Amax: 0.06 λ: 280 nm Amax: 0.05 |
| Sensitive | Hygroscopic |
| Merck | 14,2025 |
| BRN | 3598189 |
| Stability | Stable. Incompatible with strong oxidizing agents. Protect from moisture. |
| 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 |
| CAS DataBase Reference | 57-09-0(CAS DataBase Reference) |
| EWG's Food Scores | 5 |
| FDA UNII | L64N7M9BWR |
| EPA Substance Registry System | Cetyl trimethyl ammonium bromide (57-09-0) |
| UNSPSC Code | 41116107 |
| NACRES | NB.21 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |     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 | |||||||||
| target organs | Gastrointestinal tract, Respiratory system | |||||||||
| Hazard Codes | Xn,N | |||||||||
| Risk Statements | 22-37/38-41-50-50/53-36/37/38-48/22 | |||||||||
| Safety Statements | 26-39-61-37/39-60-36 | |||||||||
| RIDADR | UN 3077 9/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | BQ7875000 | |||||||||
| F | 3 | |||||||||
| TSCA | TSCA listed | |||||||||
| 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) | |||||||||
| Limited Quantities | 5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid) | |||||||||
| Excepted Quantities | Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L) | |||||||||
| NFPA 704 |
|
Hexadecyl trimethyl ammonium bromide price More Price(73)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | PHR2688 | Cetrimonium Bromide Pharmaceutical Secondary Standard; Certified Reference Material | 57-09-0 | 1G | $233 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.14119 | Hexadecyltrimethylammonium bromide for synthesis | 57-09-0 | 100g | $34.5 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.14119 | Hexadecyltrimethylammonium bromide for synthesis | 57-09-0 | 500g | $58.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | 52367 | Hexadecyltrimethylammonium bromide suitable for ion pair chromatography, LiChropur? | 57-09-0 | 10g | $204 | 2026-04-30 | Buy |
| Sigma-Aldrich | 52367 | Hexadecyltrimethylammonium bromide suitable for ion pair chromatography, LiChropur? | 57-09-0 | 50g | $786 | 2026-04-30 | Buy |
Hexadecyl trimethyl ammonium bromide Chemical Properties,Uses,Production
Chemical Properties
White powder. Soluble in water, alcohol, and chloroform.
Uses
antiinfectant
Uses
Hexadecyltrimethylammonium Bromide (CTAB) is a cationic surfactant used as a template in the synthesis of Mesoporous γ-Fe2O3.
Uses
A cationic detergent used in the isolation of high molecular weight DNA.
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.
Definition
ChEBI: The organic bromide salt that is the bromide salt of cetyltrimethylammonium; one of the components of the topical antiseptic cetrimide.
General Description
Hexadecyltrimethylammonium bromide is a titrant for the potentiometric titration of perchlorate with ionselective electrodes.
Biochem/physiol Actions
Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB is employed for extraction of DNA. CTAB method is efficient, cost and time effective for DNA extraction. CTAB is used as a shaping material and reducing agent for nanoparticle generation.
Purification Methods
Crystallise it from EtOH, EtOH/*benzene or from wet acetone after extracting twice with pet ether. Shake it with anhydrous diethyl ether, filter and dissolve it in a little hot MeOH. After cooling in the refrigerator, the precipitate is filtered off at room temperature and re-dissolved in MeOH. Anhydrous ether is added and, after warming to obtain a clear solution, it is cooled and the crystalline material is collected. [Dearden & Wooley J Phys Chem 91 2404 1987, Hakemi et al. J Am Chem Soc 91 120 1987, Beilstein 4 IV 819.]
References
[1] Liu, Tingting et al. “Hexadecyl trimethyl ammonium bromide assisted growth of NiCo2O4@reduced graphene oxide/ nickel foam nanoneedle arrays with enhanced performance for supercapacitor electrodes.” RSC Advances 7 (2022): 4029–4041.
Hexadecyl trimethyl ammonium bromide Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Watson Biotechnology Co.,Ltd | +86-18186686046 +86-18186686046; | sales01@watsonbiotech.cn | China | 5735 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| RongNa Biotechnology Co.,Ltd | +86-86-13583358881 +8618560316533 | Brad@rongnabiotech.com | China | 3364 | 58 |
| Hebei Fengjia New Material Co., Ltd | +86-0311-87836622 +86-18712993135 | sales01@tairunfaz.com | China | 8051 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| Hebei Andu Technology Com.,Ltd | +86-86-17798073498 +8617798073498 | aduchemical@163.com | China | 296 | 58 |
| HebeiShuoshengImportandExportco.,Ltd | +86-18532138899 | L18532138899@163.com | China | 939 | 58 |
View Lastest Price from Hexadecyl trimethyl ammonium bromide manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-05 | Hexadecyl trimethyl ammonium bromide
57-09-0
|
US $10.00 / ASSAYS | 1ASSAYS | 99% | 1 ton | RongNa Biotechnology Co.,Ltd | |
 |
2026-05-04 | Hexadecyl trimethyl ammonium bromide
57-09-0
|
US $5.00 / kg | 1kg | ≥99% | 200mt/year | Jinan Finer Chemical Co., Ltd | |
 |
2026-04-30 | Hexadecyl trimethyl ammonium bromide
57-09-0
|
US $0.00 / KG | 1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD |
-
- Hexadecyl trimethyl ammonium bromide
57-09-0
- US $10.00 / ASSAYS
- 99%
- RongNa Biotechnology Co.,Ltd
-
- Hexadecyl trimethyl ammonium bromide
57-09-0
- US $5.00 / kg
- ≥99%
- Jinan Finer Chemical Co., Ltd
-
- Hexadecyl trimethyl ammonium bromide
57-09-0
- US $0.00 / KG
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
