These compounds have an active sulphur moiety that is able to oxidize thiol-containing residues, thereby effectively killing most aerobic and anaerobic bacteria.

[5] Cases of photoaggravated allergic contact dermatitis, i.e. worsening of skin lesions after sun exposure, have also been reported.

[4] In pure form or in high concentrations, methylchloroisothiazolinone is a skin and membrane irritant and causes chemical burns.

After losing both engines in succession, the Airbus A321 made an emergency landing at London Gatwick Airport.

Over the course of the next day, the Kathon progressively caused more and more damage to the engines, finally resulting in an emergency landing.