a colorless, water-soluble, crystalline solid, ammonium chloride derivative, (C27H42O2N)Cl⋅H2O, used chiefly as an antiseptic.
Origin of benzethonium chloride
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A synthetic quaternary ammonium compound used as a germicide and bacteriostat.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.