ChemicalBook > CAS DataBase List > Dimethyldioctadecylammonium bromide

Dimethyldioctadecylammonium bromide

Product Name
Dimethyldioctadecylammonium bromide
CAS No.
3700-67-2
Chemical Name
Dimethyldioctadecylammonium bromide
Synonyms
DDA;DSAB;DDAB;DODAB;DODA(Br);18:0 DDAB;dioctadecyL;ERBU Adjuvant 100;Dimethyldistearylaminium·bromide;DISTEARYLDIMETHYLAMMONIUM BROMIDE
CBNumber
CB8768654
Molecular Formula
C38H80BrN
Formula Weight
630.95
MOL File
3700-67-2.mol
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Dimethyldioctadecylammonium bromide Property

Melting point:
~160 °C
Density 
1.047
refractive index 
1.5260 (estimate)
RTECS 
RG0185984
storage temp. 
-20°C
solubility 
Chloroform (Slightly), Ethyl Acetate (Slightly, Heated), Hexanes (Slightly, Heated)
form 
Granular Powder
color 
White
BRN 
3580323
Stability:
Stable. Incompatible with strong oxidizing agents.
InChI
InChI=1S/C38H80N.BrH/c1-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35-37-39(3,4)38-36-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-2;/h5-38H2,1-4H3;1H/q+1;/p-1
InChIKey
PSLWZOIUBRXAQW-UHFFFAOYSA-M
SMILES
C(CCCCCCCCCCCCCCCCC)[N+](C)(C)CCCCCCCCCCCCCCCCCC.[Br-]
CAS DataBase Reference
3700-67-2(CAS DataBase Reference)
EPA Substance Registry System
1-Octadecanaminium, N,N-dimethyl-N-octadecyl-, bromide (3700-67-2)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38-43
Safety Statements 
26-37/39
WGK Germany 
3
TSCA 
Yes
HazardClass 
9
HS Code 
29211990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H331Toxic if inhaled

H336May cause drowsiness or dizziness

H351Suspected of causing cancer

H372Causes damage to organs through prolonged or repeated exposure

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P273Avoid release to the environment.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
40165
Product name
Dimethyldioctadecylammonium bromide
Purity
≥98.0% (AT)
Packaging
5g
Price
$130
Updated
2025/07/31
Sigma-Aldrich
Product number
40165
Product name
Dimethyldioctadecylammonium bromide
Purity
≥98.0% (AT)
Packaging
25g
Price
$533
Updated
2023/06/20
TCI Chemical
Product number
D1975
Product name
Dimethyldioctadecylammonium Bromide
Purity
>98.0%(T)
Packaging
25g
Price
$99
Updated
2025/07/31
TCI Chemical
Product number
D1975
Product name
Dimethyldioctadecylammonium Bromide
Purity
>98.0%(T)
Packaging
250g
Price
$480
Updated
2025/07/31
Cayman Chemical
Product number
26120
Product name
Dimethyldioctadecylammonium (bromide)
Packaging
10g
Price
$120
Updated
2024/03/01
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Dimethyldioctadecylammonium bromide Chemical Properties,Usage,Production

Description

18:0 DDAB is a double-chained quaternary ammonium surfactant with a bromide counter ion.

Chemical Properties

white powder

Uses

Dimethyldioctadecylammonium bromide has been used in a study to assess the interaction of its monolayers with DNA using specular neutron reflection, surface pressure-area isotherms, and Brewster angle microscopy. It has also been used in a study to investigate new adjuvants for use in kill vaccines for bovine viral diarrhea virus (BVDV).

General Description

18:0 DDAB is cationic lipid and a quaternary ammonium salt. The hydrocarbon tails are saturated unlike the ionizable lipids.

Biochem/physiol Actions

18:0 DDAB is a surface-active molecule, used as an adjuvant to induce systemic immune response. It is non-toxic.

Purification Methods

Crystallise the bromide from acetone, then MeOH [Lukac J Am Chem Soc 106 4387 1984]. Also purify it by chromatography on alumina by washing with *C6H6 and eluting with Me2CO, evaporating and crystallising from MeCN [Swain & Kreevoy J Am Chem Soc 77 1126 1955]. [Beilstein 4 IV 829.]

Dimethyldioctadecylammonium bromide Preparation Products And Raw materials

Raw materials

1-Bromooctadecane Dimethylamine

Preparation Products

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Dimethyldioctadecylammonium bromide Suppliers

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View Lastest Price from Dimethyldioctadecylammonium bromide manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
Dimethyldioctadecylammonium bromide 3700-67-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-31
Hebei Yanxi Chemical Co., Ltd.
Product
Dimethyldioctadecylammonium bromide 3700-67-2
Price
US $20.00-7.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-11-02
Career Henan Chemical Co
Product
Dimethyldioctadecylammonium bromide 3700-67-2
Price
US $7.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2020-01-09

3700-67-2, Dimethyldioctadecylammonium bromideRelated Search:

N,N-Dimethylformamide Sodium bromate Tetraethylammonium bromide Clidinium bromide Tetrabutylammonium bromide Ammonium bromide Ethidium bromide 1,1,1,3,5,5,5-Heptamethyltrisiloxane Dioctadecyl dimethyl ammonium chloride Dimercaptodimethylammonium chloride Didodecylamine Didodecyl dimethyl ammonium chloride Didecyl dimethyl ammonium chloride Dimethylditetradecylammonium bromide Didodecyldimethylammonium bromide Dihexadecyldimethylammonium chloride Didecyldimethylammonium bromide Dihexadecyldimethylammonium bromide

  • DiMethyldioctadecylaMMoniuM (BroMide Salt)
  • DIMETHYLDIOCTADECYLAMMONIUM (BROMIDE SALT);18:0 DDAB
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  • Dimethyldioctadecylammonium bromide purum
  • DiMethyldioctadecylaMMoniuM broMide, 99+% 25GR
  • DimethyldioctadecylammoniumBromide&gt
  • dioctadecyL
  • Dimethyldioctadecylammonium bromide ISO 9001：2015 REACH
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  • DIMETHYLDI-ChemicalbookN-OCTADECYLAMMONIUMBROMIDE
  • Dimethyldioctadecylammonium Bromide , Dimethyldioctadecylammonium bromide
  • 3700-67-2
  • 5137-55-4
  • C38H80BrN
  • C38H80NBr
  • C18H372CH32NBr
  • CH32NC10H21Br
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  • Quaternary Ammonium Compounds
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  • Ionophores Potentiometric for ISE
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  • Cationic
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  • Analytical Chromatography Product Catalog
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  • Ammonium Bromides (Quaternary)
  • Quaternary Ammonium Compounds