Bromophos

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Structural formula
Structural formula of Bromophos
General
Surname Bromophos
other names
  • O - (4-bromo-2,5-dichlorophenyl) O, O -dimethyl monothiophosphate
  • Thiophosphoric acid O- (4-bromo-2,5-dichlorophenyl) O, O -dimethyl ester
  • Nexion
  • Omexan
Molecular formula C 8 H 8 BrCl 2 O 3 PS
External identifiers / databases
CAS number 2104-96-3
EC number 218-277-3
ECHA InfoCard 100.016.616
PubChem 16422
Wikidata Q2926019
properties
Molar mass 366.00 g mol −1
Physical state

firmly

density

1.625 g cm −3 (60 ° C)

Melting point

53-56 ° C

boiling point

140–142 ° C (0.013 mbar)

Vapor pressure

0.1 Pa (25 ° C)

solubility

practically insoluble in water (40 mg l −1 at 20 ° C)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning 09 - Dangerous for the environment

Caution

H and P phrases H: 302-410
P: 273-501
Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Bromophos (bromophos-methyl) is a chemical compound from the group of thiophosphoric acid esters .

Extraction and presentation

Bromophos can be obtained from 2,5-dichloro-4-bromophenol by reacting with sodium hydroxide with dimethylchlorothiophosphate (DMPCT). When DMPCT is replaced by diethyl chlorothiophosphate (DEPCT), the diethyl ether bromophos-ethyl is formed .

use

Bromophos is used as an insecticide against vegetable and grain flies as well as mosquitoes in cultivation and storage protection .

Admission

It was approved from 1971 to 1995 in the FRG and from 1968 to 1994 in the GDR.

No plant protection products containing this active ingredient are permitted in the EU or Switzerland .

Individual evidence

  1. ↑ a b c d e f g Entry on bromophos in the GESTIS substance database of the IFA , accessed on February 8, 2017(JavaScript required) .
  2. ↑ Data sheet Bromophos-methyl from Sigma-Aldrich , accessed on May 20, 2017 ( PDF ).
  3. ↑ J. Kinkel, G. Muacevic, R. Sehring, G. Bodenstein: To toxicology of bromophos . In: Archives for Toxicology . tape 22 , no. 1 , January 1966, p. 36-57 , doi : 10.1007 / bf00578004 ( PDF ).
  4. ↑ Entry on Bromophos 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 .
  5. ↑ Thomas A. Unger: Pesticide Synthesis Handbook . William Andrew, 1996, ISBN 0-8155-1853-6 , pp. 310 ( preview ).
  6. ↑ Budimir Ilić; Nikola Popović: About experiences with bromophos for the protection of grain in Yugoslavia . In: Scoreboard for pest science . tape 47 , no. 1 , January 1974, p. 11–13 , doi : 10.1007 / bf02312141 ( PDF ).
  7. ↑ approval history of the BVL
  8. ↑ General Directorate Health and Food Safety of the European Commission: Entry on Bromophos in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 26, 2016.