In its pure form it is a colourless liquid with a fishy odour.

[3] Dimefox was first produced in 1940 by the group of Gerhard Schrader in Germany.

It was historically used as a pesticide, but has been deemed obsolete or discontinued for use by the World Health Organization due to being an inhibitor of acetylcholinesterase.

[citation needed] It is not guaranteed that all commercial use of this compound ceased, but in most countries[which?]

[4] It is considered an extremely hazardous substance as defined by the United States Emergency Planning and Community Right-to-Know Act.