Azinphos-methyl

• Gusathion
• Guthion
• O, O -dimethyl- S-(4 -oxo -3H- 1, 2,3 - benzotriazine -3-yl ) methyl dithiophosphate

Combustible, crystalline, colorless and odorless powder

Fixed

1.44 g · cm -3

72.4 ° C

Decomposition at temperatures > 200 ° C

Negligible

Practically insoluble in water ( 28 mg · l-1 at 25 ° C)

Risk

0.2 mg · m-3

4.4 to 16 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Azinphos-methyl is a chemical compound selected from the group of the dithiophosphoric acid ester, and triazines. It is used as a broadband organophosphate insecticide in the cultivation of various fruits and vegetables. It works ( like other substances in this group ) than acetylcholinesterase. In the headlines got the connection, as the company Bayer (which is the world's largest manufacturer of the compound is ) In 1998 their effect on humans in an attempt tested directly in Scotland.

History

Azinphos-methyl was in the investigation of alkyl phosphates, which were used as nerve agents during World War II, discovered. As an insecticide, it was registered for the first time in the U.S. in 1958. In the USA the approval is scheduled to expire in 2012. In Germany, Austria and Switzerland, the agent is not allowed. The EU is, however, allow the agent under strict conditions. Since azinphos-methyl is used in many States to residues thereof found in foods imported into Germany.

Related compounds

• Azinphos C12H16N3O3PS2, CAS :2642 - 71-9