Prosulfocarb

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Structural formula
Structural formula of prosulfocarb
General
Surname Prosulfocarb
other names
  • S -Benzyl- N , N -dipropylthiocarbamate
  • S -Benzyl- N , N -dipropylcarbamothioate
Molecular formula C 14 H 21 NOS
Brief description

yellowish liquid with a sweetish odor

External identifiers / databases
CAS number 52888-80-9
EC number 401-730-6
ECHA InfoCard 100.100.363
PubChem 62020
ChemSpider 55867
Wikidata Q22808799
properties
Molar mass 251.39 g mol −1
Physical state

liquid

density

1.042 g cm −3

Melting point

<−10 ° C

boiling point
  • 248 ° C
  • 341 ° C
Vapor pressure

6.93 hPa (25 ° C)

solubility
  • practically insoluble in water (13.2 mg l −1 at 20 ° C)
  • miscible with organic solvents
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 302-317-411
P: 273-280
Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Prosulfocarb is a chemical compound from the group of thiocarbamates .

Extraction and presentation

Prosulfocarb can be obtained by reacting N- dipropylcarbamoyl chloride with benzyl mercaptan or by reacting benzyl mercaptan with phosgene and then reacting with dipropylamine .

properties

Prosulfocarb is a yellowish liquid with a sweetish odor that is practically insoluble in water. The compound is stable for at least two months at 52 ° C.

use

Prosulfocarb is used as a selective systemic pre-emergence herbicide introduced in 1988 by ICI (now Syngenta ). It is used to combat wild herbs, especially burdock and grasses in winter cereals , spring barley , sunflowers , broad beans , field peas and potatoes. The active ingredient inhibits lipid biosynthesis by preventing the elongation of the fatty acid chains and thus disrupting the formation of membrane lipids and reducing plant growth.

In Germany, Austria and Switzerland, plant protection products with this active ingredient are approved.

Individual evidence

  1. ↑ a b c d e f g h i j k l Entry on prosulfocarb in the GESTIS substance database of the IFA , accessed on March 9, 2019(JavaScript required) .
  2. ↑ EFSA: Conclusion regarding the peer review of the pesticide risk assessment of the active substance prosulfocarb. In: EFSA Journal. 5, 2007, p. 111r, doi: 10.2903 / j.efsa.2007.111r .
  3. ↑ a b c d Kalyani Paranjape, Vasant Gowariker, V. N Krishnamurthy, Sugha Gowariker: The Pesticide Encyclopedia . CABI, 2014, ISBN 978-1-78064-014-3 , pp. 415 ( limited preview in Google Book search).
  4. ↑ Entry on Prosulfocarb in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on April 19, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 978-0-8155-1853-2 , pp. 115 ( limited preview in Google Book search).
  6. ↑ a b Entry on prosulfocarb. In: Römpp Online . Georg Thieme Verlag, accessed on March 9, 2019.
  7. ↑ New instructions for use for plant protection products with the active ingredients Pendimethalin and Prosulfocarb: BVL - Fachmachrichten - New conditions for use for plant protection products with the active ingredients Pendimethalin and Prosulfocarb , accessed on March 9, 2019.
  8. ↑ Confederation: Plant protection products in small bodies of water
  9. ↑ Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 9, 2019.