tolylene·diamine | \"+\

Definition of tolylenediamine 

: any of six isomeric crystalline bases CH3C6H3(NH2)2 derived from toluene of which some are used as dye intermediates: such as

a : an isomer obtained by reduction of dinitrotoluene (see dinitrotoluene sense a); toluene-2,4-diamine

called also meta-tolylenediamine

b : an isomer obtained by reduction of aminoazo-toluene; toluene-2,5-diamine

called also para-tolylenediamine

— see safranine sense b

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History and Etymology for tolylenediamine

tolylene + diamine

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