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Distearyldimethylammonium chloride

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Title: Distearyldimethylammonium chloride  
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Language: English
Subject: Household chemicals, Laundry, Miřetice
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Distearyldimethylammonium chloride

Dimethyldioctadecylammonium chloride
CAS number  YesY
ChemSpider  YesY
Jmol-3D images Image 1
Molecular formula C38H80ClN
Molar mass 586.50 g mol−1
Melting point < 25 °C
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY   YesY/N?)

Dimethyldioctadecylammonium chloride, or distearyl dimethyl ammonium chloride, is a quaternary ammonium salt consisting of a nitrogen atom substituted with two methyl groups and two octadecyl groups. The long-chain hydrocarbon groups combined with the ionic nature of the amine group enables it to act as a surfactant or a detergent.

In household products, it may be found as an ingredient in fabric softeners, cosmetics, and hair conditioners in which it is added primarily for its phase transfer catalyst to increase reaction rates in a two-phase organic-water system.

Dimethyldioctadecylammonim Chloride is also listed as: Distearyldimonium Chloride, Dimethyldistearylammonium Chloride, DDAC.[2]


  1. ^ Record in the Household Products Database of NLM
  2. ^
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