A general term for a great number of complex derivatives obtained by chemical processes from anthracene, benzene, cresols, naphthalene, phenol, toluene, and other direct coaltar products, all of which are used in the manufacture of synthetic dyes. They include aniline oil, naphthol, naphthalene, naphthylamines, phthalic anhydride, anthran ilic acid, dmethylaniline, nitrobenzene, paranitraniline, resoicin, salicylic acid, and many other compounds, some of which are described under theii respective names.

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Definition of  INTERMEDIATES