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Emulsifiers

Cetyldimethylethylammonium bromide

Also known as Bretol, Ammonyx DME, Cetethyldimonium bromide

CAS 124-03-8Formula C20H44BrNMolar mass 378.48 g/molEC 204-672-8
GHS signal word: Warning. Pictograms: Harmful or irritant 6 suppliers listed
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Cetyldimethylethylammonium bromide chemical structure, C20H44BrN, CAS 124-03-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
124-03-8
Formula
C20H44BrN
Molar mass
378.48 g/mol
EC number
204-672-8
HS code
292390
Category
Emulsifiers

What is Cetyldimethylethylammonium bromide?

Plain description, key identifiers and synonyms

Cetyldimethylethylammonium bromide is a chemical substance with the molecular formula C20H44BrN and a molar mass of 378.48 g/mol. Its CAS registry number is 124-03-8. The IUPAC name is ethyl-hexadecyl-dimethylazanium bromide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
ethyl-hexadecyl-dimethylazanium bromide
CAS number
124-03-8 CAS number cross-checked
EC number
204-672-8
Molecular formula
C20H44BrN
UNII
7ZNQ7FIO9K
MDL number
MFCD00011774
INCI name
CETETHYLDIMONIUM BROMIDE
InChIKey
VUFOSBDICLTFMS-UHFFFAOYSA-M
InChI
InChI=1S/C20H44N.BrH/c1-5-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(3,4)6-2;/h5-20H2,1-4H3;1H/q+1;/p-1
SMILES (canonical and isomeric)
CCCCCCCCCCCCCCCC[N+](C)(C)CC.[Br-]

Synonyms

  • Bretol
  • Ammonyx DME
  • Cetethyldimonium bromide
  • Ethyl cetab
  • Quaternium-17
  • Mecetronium bromide
  • Dimethylethylhexadecylammonium bromide
  • Cetylethyldimethylammonium bromide
  • Cetyl dimethyl ethyl ammonium bromide
  • Hexadecyldimethylethylammonium bromide
  • Ethyl hexadecyl dimethyl ammonium bromide
  • Sumquat 6020
  • Ethylhexadecyldimethylammonium bromide
  • Quaternium 17
  • Cetylcide
  • N-Ethyl-N,N-dimethylhexadecan-1-aminium bromide
  • 1-Hexadecanaminium, N-ethyl-N,N-dimethyl-, bromide
  • Hexadecylethyldimethylammonium bromide
  • ethyl-hexadecyl-dimethylazanium, bromide
  • 1-Hexadecanaminium, N-ethyl-N,N-dimethyl-, bromide (1:1)
  • cetyldimethylammonium bromide
  • Ethylhexadecyldimethylammonium (bromide)
  • Ethyl(1-hexadecyl)dimethylammonium bromide
  • N-Ethyl-N,N-dimethyl-1-hexadecanaminium bromide
  • Ammonium, ethylhexadecyldimethyl-, bromide
Show all 35 synonyms
  • Ethylhexadecyldimethylammonium bromide, >=98% (non-aqueous titration)
  • EHDAB
  • Alkenyl dimethyl ethyl ammonium bromide
  • N-Ethyl-N,N-dimethyl-1-hexadecanaminium bromide (1:1)
  • Cetyl ethyldimonium bromide
  • ethylhexadecyldimethylamine, bromide
  • cetyl-dimethyl ethyl ammonium bromide
  • Cetyldimethylethylammoniumbromide
  • ethyl-hexadecyl-dimethyl-ammonium, bromide
  • Ethylhexadecyldimethylammonium bromide (EHDAB)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
378.48 g/molcalc.
Exact mass
377.2657 Dacalc.
LogP (octanol/water)
3.57calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
16calc.
Heavy atoms
22calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Cetyldimethylethylammonium bromide suppliers

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All 6 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

6 suppliers in 3 countries

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Cetyldimethylethylammonium bromide price

Indicative price range per kg from live supplier offers

No published prices right now

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Uses and applications

What the substance is used for, by industry and function

Use classes: Cosmetics.

Cosmetic ingredient, INCI name CETETHYLDIMONIUM BROMIDE(antimicrobial, antistatic, surfactant - emulsifying, surfactant - cleansing)

Functional uses

  • Anti-static agent
  • Biocide
  • Emulsifier
  • Surfactant (surface active agent)

Cosmetic functions

  • Antimicrobial
  • Antistatic
  • Surfactant - cleansing
  • Surfactant - emulsifying

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cetyldimethylethylammonium bromide is traded under.

HS 2923.90Indicative HS code

Quaternary ammonium salts and hydroxides whether or not chemically defined not elsewhere classified…

World exports in 2024
$1.07B
+14.4% vs 2023, imports $1.16B
2019 to 2024
Top exporters
  1. China36.7%
  2. United States14.2%
  3. Netherlands9.4%
Top importers
  1. South Korea10.7%
  2. Germany10.1%
  3. United States9.9%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Cetyldimethylethylammonium bromide is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cetyldimethylethylammonium bromide, based on the data on this page

What is Cetyldimethylethylammonium bromide?

Cetyldimethylethylammonium bromide is a chemical substance with the molecular formula C20H44BrN and a molar mass of 378.48 g/mol. Its CAS registry number is 124-03-8. The IUPAC name is ethyl-hexadecyl-dimethylazanium bromide.

What is the CAS number of Cetyldimethylethylammonium bromide?

The CAS registry number of Cetyldimethylethylammonium bromide is 124-03-8.

What is the molecular formula and weight of Cetyldimethylethylammonium bromide?

The molecular formula of Cetyldimethylethylammonium bromide is C20H44BrN and its molar mass is 378.48 g/mol.

What is Cetyldimethylethylammonium bromide used for?

Use classes: Cosmetics.

Is Cetyldimethylethylammonium bromide hazardous?

Cetyldimethylethylammonium bromide carries the GHS signal word "Warning". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cetyldimethylethylammonium bromide?

Cetyldimethylethylammonium bromide is usually classified under HS code 292390 (Quaternary ammonium salts and hydroxides, lecithins and other phosphoaminolipids…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cetyldimethylethylammonium bromide?

CompoundList lists 6 suppliers of Cetyldimethylethylammonium bromide in China, India and United States. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Cetyldimethylethylammonium bromide in India?

2 suppliers in India list Cetyldimethylethylammonium bromide on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Cetyldimethylethylammonium bromide?

Suppliers quote Cetyldimethylethylammonium bromide on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Cetyldimethylethylammonium bromide

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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