Terbuthylazine

Structural formula
General
Surname	Terbuthylazine
other names	2- tert -Butylamino-4-chloro-6-ethylamino-1,3,5-triazine; Gardoprim; Sorgoprim;
Molecular formula	C 9 H 16 ClN 5
Brief description	white powder with an unpleasant odor
External identifiers / databases
EC number	227-637-9
ECHA InfoCard	100.025.125
PubChem	22206
Wikidata	Q411435
properties
Molar mass	229.7 g mol −1
Physical state	firmly
density	1.121 g cm −3
Melting point	175.5 ° C
solubility	practically insoluble in water (5 mg l −1 at 20 ° C)
safety instructions
H and P phrases	H: 302-373-410
	P: 301 + 312 + 330
Toxicological data	1850 mg kg −1 ( LD 50 , rat , oral ) ; > 3000 mg kg −1 ( LD 50 , rabbit , transdermal ) ; 3.51 mg l −1 ( LD 50 , rat , inh. , 4 h) ; 7 mg l −1 ( LD 50 , fish , 96 h , median value) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Terbuthylazine is a selective and systemic herbicide and its chemical structure is very similar to atrazine (replacement of the isopropyl group with a tert- butyl group). Like atrazine and simazine, it belongs to the chlordiamo triazines and was introduced in 1966 by JR Geigy .

properties

The flash point of terbuthylazine is 100 ° C.

use

Terbuthylazine is used as a widely effective pre-emergence herbicide in sorghum, citrus, maize, wine and apple cultivation as well as in forests and on non-cultivated land.

It is approved as a crop protection agent in Germany, Austria and Switzerland. The main area of application here is the control of weeds when growing maize . Terbuthylazine preparations are mostly sold as a suspension concentrate .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on 2-tert-butylamino-4-chloro-6-ethylamino-1,3,5-triazine in the GESTIS substance database of the IFA , accessed on December 30, 2019(JavaScript required) .
↑ Entry on terbuthylazine in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ ^a ^b Terbuthylazine data sheet from Sigma-Aldrich , accessed on December 30, 2019 ( PDF ).

↑ ^a ^b Entry on terbuthylazine. In: Römpp Online . Georg Thieme Verlag, accessed on January 25, 2015.

↑ General Directorate Health and Food Safety of the European Commission: Entry on terbuthylazine in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 12, 2016.

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on 2-tert-butylamino-4-chloro-6-ethylamino-1,3,5-triazine in the GESTIS substance database of the IFA , accessed on December 30, 2019(JavaScript required) .

[CLP_100.025.125-2] Entry on terbuthylazine in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on December 30, 2019. Manufacturers or distributors can expand the harmonized classification and labeling .

[Sigma-3] Terbuthylazine data sheet from Sigma-Aldrich , accessed on December 30, 2019 ( PDF ).

[roempp-4] Entry on terbuthylazine. In: Römpp Online . Georg Thieme Verlag, accessed on January 25, 2015.

[PSM-5] General Directorate Health and Food Safety of the European Commission: Entry on terbuthylazine in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 12, 2016.