Hconc

Hconc, also referred to as Hexylcyclohexonene, is an organic chemical compound belonging to the seven-membered lactone family. It is a colorless liquid, although it is sometimes seen as a pale yellow or brownish liquid. Hconc's chemical formula is C9H14O, indicating its molecular structure as a cyclanelene ring with a ketone group.

Hconc's industrial production involves the reaction of hexenol with acetic anhydride in the presence of sulfuric acid. However, no large-scale commercial production of the chemical occurs. In its pure form, Hconc has strong warning symptoms in case of exposure. Inhaling it can cause respiratory tract irritation, and skin contact may result in moderate skin irritation, including redness and blisters.

Animal toxicity studies have been conducted on Hconc. In a 24-hour LC50 test conducted on rats, a concentration of 369 mg/l was found to result in 50% fatality within one hour of exposure. Studies have also shown systemic toxicity with signs of central nervous system effects experienced in animal subjects.

Notably, Hconc has been denoted as an environmental hazard, akin to other hexenonic lactones. While information on environmental contamination from Hconc is limited, if exposed, environmental hazards include potential irritation to aquatic life and the ground.

Regulatory provisions regarding the production and use of Hconc vary by country and government agency. It is subject to limitations on its use in various jurisdictions due to environmental and human health factors. In countries that regulate its production, Hconc requires special handling to minimize environmental impact and to reduce risks associated with its extraction and use.