... the main component, is C benzene, ethyl toluene and 1,3,5-side with three toluene, o 3 toluene, such as indinavir ... The pyrolysis gasoline aromatics, nine aromatic carbon 20%, of which three toluene 4% to 6%. Carbon 9 aromatics complex distillate component ... to January 1, mainly isolated partial three toluene and 1,3,5 system for trimellitic anhydride and Pyromellific anhydride, used in the coatings ...