Paratoluidine

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Toluidine \To*lu"i*dine\, n. (Chem.)
     Any one of three metameric amido derivatives of toluene
     analogous to aniline, and called respectively
     {orthtoluidine}, {metatoluidine}, and {paratoluidine};
     especially, the commonest one, or {paratoluidine}, which is
     obtained as a white crystalline substance.


     [1913 Webster]
  
     Note: It is used in the aniline dye industry, and constitutes
           the essential nucleus or radical of those dyes.
           [1913 Webster] Toluol