2-Chlorofluorene is a chemical compound of a chlorinated aromatic hydrocarbon, with the chemical formula C13H9Cl. It is a colorless solid, with a melting point of 101°C, and is nearly insoluble in water.
2-Chlorofluorene is a widely used precursor in the synthesis of fluorene derivatives. It is used in the production of dyes, pigments, fluorescent brighteners and other fluorescent compounds. It is also used as a raw material in the production of pharmaceutical products, and has been used as a solvent in the manufacture of semiconductor devices.
2-Chlorofluorene can be synthesized from either 2-chlorotoluene or 2-chlorobenzaldehyde. The former is produced by the reaction of chlorine gas with toluene, while the latter is produced by the reaction of chlorine gas with benzaldehyde. The reaction of 2-chlorotoluene with an aqueous solution of sodium hydroxide produces 2-chlorofluorene.
2-Chlorofluorene is a highly toxic compound, with an LD50 value of 5.2 mg/kg in rats. It is an irritant to skin and eyes, and can cause skin and eye irritation if handled without proper protective equipment. In addition, it is flammable and can be explosive when heated or exposed to an open flame.
In terms of environmental impact, 2-chlorofluorene is a persistent organic pollutant, with a half-life of several months in the environment. It has been detected in surface and ground water, and has been linked to the contamination of aquatic ecosystems.
2-Chlorofluorene is regulated in the United States under the Toxic Substances Control Act, and is classified as a hazardous air pollutant. It is also listed on the European Union's list of substances of very high concern, under the REACH regulation.
Cas number: 2523-44-6