Cyhexatin

Structural formula
General
Surname	Cyhexatin
other names	Tricyclohexyl tin hydroxide; Hydroxytricyclohexylstannane;
Molecular formula	C 18 H 34 OSn
Brief description	colorless solid
External identifiers / databases
EC number	236-049-1
ECHA InfoCard	100.032.757
PubChem	6327054
Wikidata	Q409536
properties
Molar mass	385.18 g mol −1
Physical state	firmly
density	1.378 g cm −3
Melting point	160 ° C ° C (decomposition)
solubility	poorly soluble in water (1 mg l −1 at 20 ° C)
safety instructions
H and P phrases	H: 332-312-302-410
	P: 273-280-501
Toxicological data	180 mg kg −1 ( LD 50 , rat , oral ) ; 2420 mg kg −1 ( LD 50 , rabbit , transdermal ) ;
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cyhexatin is a chemical compound from the group of organotin compounds .

Extraction and presentation

Cyhexatin can be obtained by a multi-stage reaction starting from bromocyclohexane or chlorocyclohexane with magnesium . The resulting intermediate product, cyclohexylmagnesium bromide , is reacted with tin (IV) chloride to form tricyclohexyltin and then forms cyhexatin on reaction with sodium hydroxide .

properties

Cyhexatin is a colorless solid that is poorly soluble in water. It is stable in water and is a breakdown product of azocyclotin and is itself broken down to dicyclohexyltin .

use

Cyhexatin is used as a non-systemic contact acaricide against motile spider mite stages (also against resistant species) and was introduced in 1968 as an anti- mite agent.

Admission

In the EU states including Germany and Austria as well as in Switzerland, no plant protection products are permitted that contain cyhexatin as an active ingredient.

Web links

Joint Meeting on Pesticide Residues (JMPR), Monograph for Cyhexatin

Individual evidence

↑ ^a ^b ^c ^d ^e Entry for CAS no. 13121-70-5 in the GESTIS substance database of the IFA , accessed on July 26, 2011(JavaScript required) .
↑ ^a ^b ^c Datasheet Cyhexatin, PESTANAL ^® , analytical standard from Sigma-Aldrich , accessed on October 22, 2016 ( PDF ).
↑ ^a ^b cyhexatin. (PDF; 1.4 MB) FAO:, accessed on July 26, 2011 .
↑ Entry on Cyhexatin in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
↑ Thomas A. Unger: Pesticide synthesis handbook . 1996, ISBN 978-0-8155-1401-5 ( page 399 in the Google book search).
^ Terence Robert Roberts, DH Hutson: Metabolic pathways of agrochemicals . Royal Soc of Chemistry, 1999, ISBN 978-0-85404-499-3 ( page 529 in Google book search).
↑ Cyhexatin. Enius: Retrieved July 26, 2011 .
↑ General Directorate Health and Food Safety of the European Commission: Entry on Cyhexatin in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 8, 2016.

[GESTIS-1] Entry for CAS no. 13121-70-5 in the GESTIS substance database of the IFA , accessed on July 26, 2011(JavaScript required) .

[Sigma-2] Datasheet Cyhexatin, PESTANAL ^® , analytical standard from Sigma-Aldrich , accessed on October 22, 2016 ( PDF ).

[fao-3] cyhexatin. (PDF; 1.4 MB) FAO:, accessed on July 26, 2011 .

[CLP_100.032.757-4] Entry on Cyhexatin in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .

[unger-5] Thomas A. Unger: Pesticide synthesis handbook . 1996, ISBN 978-0-8155-1401-5 ( page 399 in the Google book search).

[mbpw-6] Terence Robert Roberts, DH Hutson: Metabolic pathways of agrochemicals . Royal Soc of Chemistry, 1999, ISBN 978-0-85404-499-3 ( page 529 in Google book search).

[7] Cyhexatin. Enius: Retrieved July 26, 2011 .

[PSM-8] General Directorate Health and Food Safety of the European Commission: Entry on Cyhexatin in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 8, 2016.