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7398-69-8 Usage


Diallyldimethylammonium chloride solution (DADMAC) is a hydrophilic quaternary ammonium compound that can be dissolved in an aqueous solution as a positively charged colloid.

Chemical Properties

Colorless to Light yellow to Light orange clear liquid. Diallyldimethylammonium chloride (DADMAC) and Polydiallyldimethylammonium chloride (polyDADMAC) are contaminants that may be present in potential drinking water sources. PolyDADMAC is a polymer manufactured from DADMAC. PolyDADMAC is often used to help remove suspended particulates from water. DADMAC has no direct uses, but may be present when polyDADMAC is used. PolyDADMAC is used in: Wastewater treatmentPaper makingTextile printing Silica sand mining


Different sources of media describe the Uses of 7398-69-8 differently. You can refer to the following data:
1. DADMAC is used as a cationic monomer solution for the fabrication of ion-selective polyelectrolytic anodized aluminium oxide (AAO) membranes which can be used for the development of electrical power generation systems. It may be grafted on carboxymethyl cellulose (CMC) for use as an absorbent for cationic dyes.
2. Diallyldimethylammonium chloride (DADMAC) is a viscous, colourless to pale yellow liquid with slight odour. mainly used as cationic monomer in resins production. DADMAC is a quaternary ammonium salt with high density charge and can be dissolved in water very easily. It is non-flammable, non-explosive and stable at room temperature. The polymers occurring by DADMAC reaction is also known as poly-DADMAC and finds its application in a wide range of industrial application.

Check Digit Verification of cas no

The CAS Registry Mumber 7398-69-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,3,9 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7398-69:
138 % 10 = 8
So 7398-69-8 is a valid CAS Registry Number.

7398-69-8 Well-known Company Product Price

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  • Aldrich

  • (32598)  Diallyldimethylammoniumchloride  ≥97.0% (AT)

  • 7398-69-8

  • 32598-10G

  • 1,559.61CNY

  • Detail
  • Aldrich

  • (348279)  Diallyldimethylammoniumchloridesolution  65 wt. % in H2O

  • 7398-69-8

  • 348279-1L

  • 1,284.66CNY

  • Detail
  • Aldrich

  • (348279)  Diallyldimethylammoniumchloridesolution  65 wt. % in H2O

  • 7398-69-8

  • 348279-3L

  • 2,767.05CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017


1.1 GHS Product identifier

Product name Diallyldimethylammonium chloride

1.2 Other means of identification

Product number -
Other names (CH2=CHCH2)2N(Cl)(CH3)2

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Intermediates,Solids separation agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7398-69-8 SDS

7398-69-8Relevant articles and documents

Copolymerization of the poly(N,N-dimethyl-N,N-diallylammonium chloride) macromonomer with acrylamide


, p. 535 - 539 (2007)

Copolymers of the poly(N,N-dimethyl-N,N-diallylammonium chloride) macromonomer (1′) with acrylamide (2) with a high content of cationic groups (up to 50%) were synthesized. The relative activities r 1′ and r 2 were calculated. The relative activities calculated by the Kelen-Tudos (r 1′ = 0.057±0.009, r 2 = 1.57±0.12) and Feynman-Ross (r 1′ = 0.055±0.011, r 2 = 1.58±0.14) methods are in accordance. The intrinsic viscosity and the yield of copolymers were found to decrease with an increase in the molar fraction of macromonomer 1′ in the monomer mixture.

High-yield preparation method of high-purity dimethyl diallyl ammonium chloride monomer


Paragraph 0069-0071; 0081-0084, (2019/03/31)

The invention belongs to the technical field of organic synthesis, and specifically relates to a high-yield preparation method of a high-purity dimethyl diallyl ammonium chloride monomer. According tothe preparation method provided by the invention, a segmented type chloropropene and sodium hydroxide solution alternative and dropwise adding method is adopted, the most suitable alternative and dropwise adding amount and the most suitable reaction time of the chloropropene and the sodium hydroxide solution can be found through a large amount of small-scale tests and by adopting an acid-base indicator, the chloropropene can be prevented from being located in strong base environment, a large amount of byproducts such as allyl alcohol can be effectively prevented from being generated, the utilization rate of the chloropropene can be effectively increased, and by adopting a pressure-proof closed reaction kettle, dimethylamine is enabled not to leak and can completely take part in reaction.A dimethyl diallyl ammonium chloride monomer solution obtained through the preparation method is light in color and less in impurities, activated carbon is not used for decoloring and removing the impurities, the purity is high, the contents of amine salt and chlorine ions are extremely low, the yield is approximate to ideal value, a product is used for homopolymerization experiments, a colorless,transparent and clear polymer solution is obtained, and the viscosity and the molecular weight of the colorless, transparent and clear polymer solution are far higher than those of like products.

A cationic monomer is dimethyl diallyl ammonium chloride synthetic method


Paragraph 0031; 0032; 0033, (2016/10/07)

The invention discloses a synthesis method of cationic monomer dimethyl diallyl ammonium chloride, belongs to the technical field of organic chemical industry, and particularly relates to synthesis of dimethyl diallyl ammonium chloride. The synthesis method comprises the following steps: firstly, performing distillation on a 30-40% dimethylamine solution at low-temperature, and absorbing by using a dimethylamine solution with the same concentration and in a low-temperature state to obtain a concentrated dimethylamine solution with the mass concentration of 55-65%; secondly, at 0-10 DEG C, slowly adding 1/8-1/ 6 of chloropropene into the concentrated aqueous dimethylamine solution, and performing early tertiary amination reaction; thirdly, adding the rest chloropropene and a sodium hydroxide solution with the mass concentration of 45-55% dropwise, and performing neutralization reaction and the early tertiary amination reaction; finally, performing quaternization reaction, and purifying to obtain the cationic monomer dimethyl diallyl ammonium chloride. According to the synthesis method, the distillation temperature is relatively low and the negative pressure environment is not required, so that the operation is safer, the reaction speed is high, few intermediate products are generated, and the production capacity of a device can be improved.

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