Kelevan

Structural formula
General
Surname	Kelevan
other names	Ethyl 1,1a, 3,3a, 4,5,5a, 5b, 6-decachloroctahydro-2-hydroxy-gamma-oxo-1 H -1,3,4-methenocyclobuta [ cd ] pentalen-2-pentanoate
Molecular formula	C 17 H 12 Cl 10 O 4
Brief description	white solid
External identifiers / databases
EC number	620-410-9
ECHA InfoCard	100.149.203
PubChem	20226
Wikidata	Q21042454
properties
Molar mass	634.81 g mol −1
Physical state	firmly
Melting point	91 ° C
Vapor pressure	<0.0014 Pa Pa (20 ° C)
solubility	hydrolyzed in water; soluble in organic solvents;
safety instructions
H and P phrases	H: 311-302-411
	P: 273
Toxicological data	188 mg kg −1 ( LD 50 , rabbit , transdermal ) ; 240 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 .

Kelevan is a chemical compound from the group of cyclodienes and an ethyl levulinic acid derivative of chlorodecone .

Extraction and presentation

Kelevan can be obtained by condensing chlorodecone and ethyl levulinate .

properties

Kelevan is a white solid that hydrolyzes in water . It decomposes when heated above 91 ° C. The technical product contains 94–98% Kelevan, 0.1–2% chlorodecone and 0.5–4.0% inorganic salts.

use

Kelevan was used as an insecticide (for example against the Colorado beetle ). The connection was approved in the FRG from 1971 to 1980 and in the GDR between 1974 and 1981.

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g Entry for CAS no. 10042-59-8 in the GESTIS substance database of the IFA , accessed on August 31, 2015(JavaScript required) .
↑ ^a ^b ^c ^d ^e ^f Environmental Health Criteria (EHC) for Kelevan , accessed August 31, 2015.
↑ Entry on Kelevan (ISO) 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 .
↑ Kelevan data sheet at Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).

^ Peter Brandt: Reports on Plant Protection Products 2009 Active Ingredients in Plant Protection Products ; Approval history and regulations of the Plant Protection Application Ordinance . Springer-Verlag, 2010, ISBN 978-3-0348-0029-7 , pp. 19 ( limited preview in Google Book search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g Entry for CAS no. 10042-59-8 in the GESTIS substance database of the IFA , accessed on August 31, 2015(JavaScript required) .

[WHO-2] ↑ ^a ^b ^c ^d ^e ^f Environmental Health Criteria (EHC) for Kelevan , accessed August 31, 2015.

[CLP_100.149.203-3] Entry on Kelevan (ISO) 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 .

[Sigma-4] Kelevan data sheet at Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).

[Peter_Brandt-5] Peter Brandt: Reports on Plant Protection Products 2009 Active Ingredients in Plant Protection Products ; Approval history and regulations of the Plant Protection Application Ordinance . Springer-Verlag, 2010, ISBN 978-3-0348-0029-7 , pp. 19 ( limited preview in Google Book search).