Bromopropylate

from Wikipedia, the free encyclopedia
Structural formula
Structural formula of bromopropylate
General
Surname Bromopropylate
other names
  • Isopropyl 4,4'-dibromobenzilate
  • 4,4'-Dibromobenzilic acid isopropyl ester
  • Phenisobromolate
Molecular formula C 17 H 16 Br 2 O 3
Brief description

white solid

External identifiers / databases
CAS number
  • 18181-80-1
  • 5836-10-2 (RN)
PubChem 28936
Wikidata Q2926021
properties
Molar mass 428.15 g mol −1
Physical state

firmly

density

1.59 g cm −3

Melting point

77 ° C

solubility
  • practically insoluble in water (0.1 mg l −1 at 20 ° C)
  • soluble in many organic solvents
safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 315
P: no P-phrases
Toxicological data
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Bromopropylate

Bromopropylate is a chemical compound from the group of carboxylic acid esters .

Extraction and presentation

Bromopropylate, by esterification of Dibrombenzilsäure with isopropanol are recovered.

Brompropylate synthesis.svg

properties

Bromopropylate is a flammable white solid that is practically insoluble in water. It is relatively stable in neutral or slightly acidic media.

use

Bromopropylate is used as an acaricide to combat spider mites in beekeeping as well as in citrus, fruit and wine growing. The use against mites was first tested in 1966. The connection was approved in the GDR between 1982 and 1994. Under the name Folbex VA , it was used in incense strips against the Varroa mite .

Admission

In the European Union, by Regulation (EC) No. 2076/2002 of November 20, 2002, bromopropylate was not included in Annex I of Directive 91/414 / EEC. For this reason, no plant protection products containing bromopropylate may be approved in the EU member states . A transition period until mid-2007 was planned for Belgium and Spain because the active substance was difficult to replace in certain crops.

In Switzerland, too, no pesticides containing this active ingredient are permitted.

Individual evidence

  1. ↑ a b c d e f g h i Entry on bromopropylate in the GESTIS substance database of the IFA , accessed on May 21, 2017(JavaScript required) .
  2. ↑ a b c Joint Meeting on Pesticide Residues (JMPR), Monograph für Bromopropylate , accessed December 9, 2014.
  3. ↑ Bromopropylate data sheet from Sigma-Aldrich , accessed on May 21, 2017 ( PDF ).
  4. ↑ Thomas A. Unger: Pesticide synthesis handbook . 1996, ISBN 978-0-8155-1401-5 , pp. 782 ( limited preview in Google Book search).
  5. ↑ Peter Brandt: Active Ingredients in Plant Protection Products ; Approval history and regulations of the Plant Protection Application Ordinance . Springer, Berlin 2010, ISBN 978-3-0348-0028-0 , pp. 10 ( limited preview in Google Book search).
  6. ^ FAO (Ed.): Honeybee Mites and Their Control: A Selected Annotated Bibliography . Rome 1986, ISBN 92-5102520-7 , pp. 104 ( limited preview in Google Book search).
  7. ↑ Regulation (EC) No. 2076/2002 (PDF) of the Commission of November 20, 2002
  8. ↑ General Directorate Health and Food Safety of the European Commission: Entry on diafenthiuron in the EU pesticide database; Entry in the national registers of plant protection products in Switzerland , Austria and Germany ; accessed on March 8, 2016.