Diquat

Diquat is the ISO common name for an organic dication that, as a salt with counterions such as bromide or chloride is used as a contact herbicide that produces desiccation and defoliation. Diquat is no longer approved for use in the European Union, although its registration in many other countries including the USA is still valid.

Diquat dibromide
Names
IUPAC name
6,7-dihydrodipyrido[1,2-a:2′,1′-c]pyrazine-5,8-diium dibromide
Other names
1,1′-Ethylene-2,2′-bipyridyldiylium dibromide
Identifiers
  • Compounds
  • Dibromide: Diquat dibromide
  • Dichloride: Diquat dichloride
  • Dication: Diquat dication
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.001.436
KEGG
UNII
  • InChI=1S/C12H12N2.2BrH/c1-3-7-13-9-10-14-8-4-2-6-12(14)11(13)5-1;;/h1-8H,9-10H2;2*1H/q+2;;/p-2 Y
    Key: ODPOAESBSUKMHD-UHFFFAOYSA-L Y
  • Dichloride: InChI=1S/C12H12N2.2ClH/c1-3-7-13-9-10-14-8-4-2-6-12(14)11(13)5-1;;/h1-8H,9-10H2;2*1H/q+2;;/p-2
    Key: SKYNPRKUXHXZFJ-UHFFFAOYSA-L
  • Dication: InChI=1S/C12H12N2/c1-3-7-13-9-10-14-8-4-2-6-12(14)11(13)5-1/h1-8H,9-10H2/q+2
    Key: SYJFEGQWDCRVNX-UHFFFAOYSA-N
  • Dibromide: C1[n+]2ccccc2-c3cccc[n+]3C1.[Br-].[Br-]
Properties
C12H12Br2N2
Molar mass 344.050 g·mol−1
Appearance White/yellow crystals
Density 1.61 g/cm3
Melting point Decomposes
71.8% (20 °C)
log P -4.6
Vapor pressure 0.01 mPa (20 °C)
Hazards
GHS labelling:
NFPA 704 (fire diamond)
4
0
0
NIOSH (US health exposure limits):
REL (Recommended)
TWA 0.5 mg/m3
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.