Fensulfothion

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Structural formula
Structural formula of Fensulfothione
1: 1 mixture of two stereoisomeric sulfoxides
General
Surname Fensulfothion
other names
  • Terracure
  • That is
  • ( RS ) - O , O -Diethyl- O - (4-methylsulfinylphenyl) thione phosphate
  • ( RS ) -thiophosphoric acid- O , O -diethyl- O- (4- (methylsulfinyl) phenyl) ester
  • (±) - O , O -Diethyl- O - (4-methylsulfinylphenyl) thione phosphate
  • (±) -thiophosphoric acid O , O -diethyl- O- (4- (methylsulfinyl) phenyl) ester
  • O , O -Diethyl- O- (4-methylsulfinylphenyl) thione phosphate
  • Thiophosphoric acid O , O diethyl O - (4- (methylsulfinyl) phenyl) ester
Molecular formula C 11 H 17 O 4 PS 2
Brief description

yellow to brown liquid

External identifiers / databases
CAS number 115-90-2
EC number 204-114-3
ECHA InfoCard 100.003.741
PubChem 8292
Wikidata Q5443592
properties
Molar mass 308.36 g mol −1
Physical state

liquid

density

1.202 g cm −3

boiling point

138–141 ° C (at 0.01 hPa)

solubility
  • sparingly soluble in water (1.54 g l −1 at 25 ° C)
  • soluble in most non-aliphatic organic solvents
Refractive index

1.54 (25 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
06 - Toxic or very toxic 09 - Dangerous for the environment

danger

H and P phrases H: 300 + 310 + 330-410
P: 260-264-280-284-301 + 310-273
MAK

Switzerland: 0.1 mg m −3 (measured as inhalable dust )

Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Fensulfothione is a 1: 1 mixture of two stereoisomeric chemical compounds from the group of thiophosphoric acid esters .

Extraction and presentation

Fensulfothione can be obtained by reacting O , O- diethylphosphorochlorothioate with 4-methyl mercaptophenol and then with hydrogen peroxide .

properties

Fensulfothion is a yellow to brown liquid that is sparingly soluble in water.

use

Fensulfothion is used as a nematicide and insecticide . The compound was brought onto the market by Bayer in 1965.

In Germany, Austria and Switzerland, no pesticides with this active ingredient are permitted.

Individual evidence

  1. ↑ a b c d e f g h i Entry on Fensulfothione in the GESTIS substance database of the IFA , accessed on February 1, 2016(JavaScript required) .
  2. ↑ a b c d e Joint Meeting on Pesticide Residues (JMPR), Monograph for Fensulfothion , accessed July 4, 2015.
  3. ↑ Entry on Fensulfothion in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on August 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  4. ↑ Swiss Accident Insurance Fund (Suva): Limits - Current MAK and BAT values (search for 115-90-2 or Fensulfothion ), accessed on November 2, 2015.
  5. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 978-0-8155-1853-2 , pp. 323 ( limited preview in Google Book search).
  6. ↑ Christa Fest, K.-J. Schmidt: The Chemistry of Organophosphorus Pesticides Reactivity - Synthesis - Mode of Action - Toxicology . Springer Science & Business Media, 2012, ISBN 978-3-642-97876-0 , p. 237 ( limited preview in Google Book search).
  7. ^ Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on February 14, 2016.