Barban (herbicide)

Structural formula
General
Surname	Barban (herbicide)
other names	Chlorinate; 4-chlorobut-2-ynyl-3-chlorocarbanilate; 4-chloro-2-butynyl (3-chlorophenyl) carbamate;
Molecular formula	C 11 H 9 Cl 2 NO 2
Brief description	colorless and odorless solid
External identifiers / databases
EC number	202-930-4
ECHA InfoCard	100.002.665
PubChem	7551
Wikidata	Q9165259
properties
Molar mass	258.10 g mol −1
Physical state	firmly
density	1.403 g cm −3
Melting point	75 ° C
Vapor pressure	0.05 mPa (25 ° C)
solubility	practically insoluble in water (11 mg l −1 at 25 ° C)
safety instructions
H and P phrases	H: 302-317-410
	P: 273-280-501
Toxicological data	527 mg kg −1 ( LD 50 , rat , oral )
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Barban is a chemical compound from the group of carbamates . It was used as a selective herbicide , but has not been approved in the Federal Republic of Germany since 1979. Barban was licensed in the GDR until 1987.

The active ingredient barban is not approved for use in plant protection products in the European Union .

In Switzerland, Austria and Germany no pesticides with the active ingredient Barban are approved.

Extraction and presentation

Barban can be obtained by reacting phosgene with m -chloroaniline and 2-butyne-1,4-diol with thionyl chloride and the two products with one another.

Individual evidence

↑ ^a ^b ^c ^d Entry on Barban in the GESTIS substance database of the IFA , accessed on July 10, 2016(JavaScript required) .
↑ entry to BARBAN at ChemicalBook , accessed on August 21, 2013.
↑ ^a ^b ^c Entry on Barban in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on August 21, 2013.
↑ Entry on Barban 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 .
↑ ^a ^b Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 63 ( limited preview in Google Book search).
↑ Regulation (EC) No. 2076/2002 of the Commission of November 20, 2002 (PDF) extending the deadline according to Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I of this Directive and the revocation of the approval of plant protection products with these active substances.
↑ General Directorate Health and Food Safety of the European Commission: Entry on Barban in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; Retrieved February 19, 2016.

[GESTIS-1] Entry on Barban in the GESTIS substance database of the IFA , accessed on July 10, 2016(JavaScript required) .

[cb-2] try to BARBAN at ChemicalBook , accessed on August 21, 2013.

[ppdb-3] Entry on Barban in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on August 21, 2013.

[CLP_100.002.665-4] Entry on Barban 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 .

[unger-5] Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 63 ( limited preview in Google Book search).

[6] Regulation (EC) No. 2076/2002 of the Commission of November 20, 2002 (PDF) extending the deadline according to Article 8 (2) of Council Directive 91/414 / EEC and on the non-inclusion of certain active substances in Annex I of this Directive and the revocation of the approval of plant protection products with these active substances.

[PSM-7] General Directorate Health and Food Safety of the European Commission: Entry on Barban in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; Retrieved February 19, 2016.