methylbenzethonium chloride
noun
meth·yl·ben·ze·tho·ni·um chloride
| \ ˌmeth-əl-ˌben-zə-ˌthō-nē-əm-
\
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Medical Definition of methylbenzethonium chloride
: a quaternary ammonium salt C28H44ClNO2 used as a bactericide and antiseptic especially in the treatment of diaper rash
— called also methylbenzethonium