Application

Used in the manufacture of dyes, chemical reagents, explosives, insecticides, lubricants, rubber antioxidants, etc. Used as an analytical reagent for the photometric determination of nitrite and the determination of methylene; used as a reagent for the determination of lignin, hydrocarbons and formaldehyde. It is also used in organic synthesis. It is used to prepare hyacinth blue, vulcanized reduction blue GNX, vulcanized reduction deep blue 4RB, permanent violet RL, chromophenol AS-IB, anthraquinone reducing dye and oxazine dye. Pesticide the insecticide tetranitrocarbazole. Uv - sensitive photographic dry plates and N- vinyl carbazole plastics were prepared.