释义 |
tolylene·diamine \“+\ noun Etymology: tolylene + diamine : any of six isomeric crystalline bases CH3C6H3(NH2)2 derived from toluene of which some are used as dye intermediates: as a. : an isomer obtained by reduction of 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 b |