Octachlorodipropyl ether

Structural formula
Structural formula without stereochemistry
General
Surname	Octachlorodipropyl ether
other names	Bis (2,3,3,3-tetrachloropropyl) ether S 421 S 2
Molecular formula	C 6 H 6 Cl 8 O
External identifiers / databases
CAS number 127-90-2 EC number 204-870-4 ECHA InfoCard 100.004.429 PubChem 518659 Wikidata Q18411968
properties
Molar mass	377.74 g mol −1
Physical state	liquid
density	1.65 g cm −3
Melting point	<−50 ° C
boiling point	144 ° C (1 hPa )
solubility	practically insoluble in water
safety instructions
GHS labeling of hazardous substances no GHS pictograms H and P phrases H: no H-phrases P: no P-phrases
Toxicological data	3630 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 .

Octachlorodipropylether or S 421 is a chemical compound from the group of chlorinated ethers .

use

S 421 is used as a synergist for insecticides . It was approved in Germany until 1989, where it was used together with methoxychlor . Today it is not approved as a crop protection agent in the European Union or in Switzerland .

In China, S 421 is added to pyrethroids on a large scale . However, it is less effective than piperonyl butoxide .

Individual evidence

1. ↑ ^{a b c d e f} Entry on octachlorodipropyl ether in the GESTIS substance database of the IFA , accessed on October 29, 2014 (JavaScript required)
2. ↑ ^{a b} data sheet S 421 from Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).
3. ^ Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national directory of plant protection products in Switzerland ; Retrieved June 26, 2016.
4. ↑ Jiang Guomin, Yu Xiaolin, Cai Rongchang: The Handbook of Insecticide Formulations and Its Technologies for Household and Public Health Use . Cosmos Books, Hong Kong 2003, ISBN 988-201-436-4 , pp. 66 ff .