Used for organic synthesis, for the preparation of o-chlorobenzonitrile, o-chloroaniline, o-chlorobenzoyl chloride, o-chlorobenzaldehyde, etc. Intermediates in organic synthesis of dyes, pharmaceuticals, pesticides, etc. For example, as medicine "clotrimazole", pesticide "diflubenzuron", "Clofetezine", dye "CI". Acid brilliant blue "and other raw materials, also used as rubber, synthetic resin solvent.