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di·ni·tro·phe·nol | \ (ˌ)dī-ˌnī-trō-ˈfē-ˌnōl 
, -fi-ˈnōl \
, -fi-ˈnōl \Definition of dinitrophenol
: any of six isomeric crystalline compounds C6H4N2O5 some of whose derivatives are pesticides
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dinitrophenol
noundi·ni·tro·phe·nol | \ -ˈfē-ˌnōl , -fi-ˈ \
, -fi-ˈ \Medical Definition of dinitrophenol
: any of six isomeric crystalline compounds C6H4N2O5 some of whose derivatives are pesticides especially : a highly toxic compound that increases fat metabolism and was formerly used in weight control
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The first known use of dinitrophenol was in 1873
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