Perthan

Structural formula
General
Surname	Perthan
other names	1,1-dichloro-2,2-bis ( p -ethylphenyl) ethane 1,1-dichloro-2,2-bis (4-ethylphenyl) ethane ( IUPAC ) p , p ′ -ethyl DDD Ethylan
Molecular formula	C 18 H 20 Cl 2
Brief description	crystalline solid
External identifiers / databases
CAS number 72-56-0 EC number 200-785-1 ECHA InfoCard 100,000.714 PubChem 6295 Wikidata Q21495322
properties
Molar mass	307.26 g mol −1
Physical state	firmly
Melting point	57-59 ° C
solubility	practically insoluble in water
safety instructions
GHS labeling of hazardous substances Caution H and P phrases H: 410 P: 273-501
Toxicological data	6600 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 .

Perthan is an insecticide used to control insects on fruits and vegetables. It is also used against moths and carpet beetles in dry cleaning and the textile industry . It is structurally related to dichlorodiphenyldichloroethane (DDD).

No pesticides containing this active ingredient are permitted in the European Union or Switzerland .

Individual evidence

1. ↑ Entry on Perthane in the Pesticide Properties DataBase (PPDB) of the University of Hertfordshire , accessed on December 21, 2017.
2. ↑ ^{a b c d} data sheet Perthan at Sigma-Aldrich , accessed on December 21, 2017 ( PDF ).
3. ↑ Entry on 1,1-dichloro-2,2-bis (4-ethylphenyl) ethane in the GESTIS substance database of the IFA , accessed on December 21, 2017(JavaScript required) .
4. ↑ Entry in the Pesticide Management Education Program , accessed December 21, 2017.
5. ^ Directorate-General for Health and Food Safety of the European Commission: EU pesticide database ; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on December 21, 2017.