tolidine

/tol-i-deen, -din/US // ˈtɒl ɪˌdin, -dɪn //UK // (ˈtɒlɪˌdiːn) //

托立德,托利定,托利啶,托利尼

Definitions

n.名词 noun

1
Chemistry.
- : any of several isomeric derivatives of biphenyl containing two methyl and two amino groups, especially the ortho isomer that is used as a reagent and in the preparation of dyes.

Thus diazotised benzidine and tolidine combine with salicylic acid to form valuable yellow azo-dyes known as “chrysamines.”
Ellms and Hauser investigated benzidine in 1913 and found it to be inferior to o-tolidine as a test reagent for free chlorine.
It is impossible to attempt to specify by name any of these recent benzidine and tolidine dyes.