dinitrobenzene /daɪˌnaɪtrəʊˈbɛnziːn, -bɛnˈziːn/

• 1. 

  N a yellow crystalline compound existing in three isomeric forms, obtained by reaction of benzene with nitric and sulphuric acids. The meta- form is used in the manufacture of dyes and plastics. Formula: C6H4(N02)2 二硝基苯