For Production. Dyes can be prepared from 8-naphthalene dicarboxylic anhydride, acenaphthene resin can be prepared from dehydrogenation, plant growth hormone, insecticide, fungicide, etc. . 8-naphthalene dicarboxylic anhydride and Acenaphthene quinone can be used to synthesize dyestuff, polyester resin, polyester fiber, fluorescent pigment, medicine, pesticide, Acenaphthene can be obtained by dehydrogenation of Acenaphthene, and Acenaphthene resin can be made.