Description

Diquat Dibromide (CAS No. 85-00-7) is a highly effective herbicide and desiccant, widely used in agricultural and industrial applications. With the molecular formula C₁₂H₁₂Br₂N₂, this quaternary ammonium compound acts as a fast-acting contact herbicide, disrupting plant cell membranes upon contact. Its IUPAC name, 7,10-diazoniatricyclo[8.4.0.0^2,7]tetradeca-1(14),2,4,6,10,12-hexaene;dibromide, reflects its complex bicyclic structure. Diquat dibromide is available in high-purity formulations suitable for research, analytical testing, and commercial use. Store in a cool, dry place away from light and moisture to maintain stability.

Properties

• CAS Number: 85-00-7
• Complexity: 182
• IUPAC Name: 7,10-diazoniatricyclo[8.4.0.02,7]tetradeca-1(14),2,4,6,10,12-hexaene;dibromide
• InChI: 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
• InChI Key: ODPOAESBSUKMHD-UHFFFAOYSA-L
• Exact Mass: 343.93467
• Molecular Formula: C12H12Br2N2
• Molecular Weight: 344.04
• SMILES: C1C[N+]2=CC=CC=C2C3=CC=CC=[N+]31.[Br-].[Br-]
• Topological: 7.8
• Monoisotopic Mass: 341.93672
• Physical Description: Dibromide salt: Yellow crystals. [Note: Commercial product may be found in a liquid concentrate or a solution.]
• Boiling Point: Decomposes
• Melting Point: 635 °F
• Solubility: 70%
• Density: 1.22-1.27
• Vapor Pressure: <0.00001 mmHg
• Synonyms: DIQUAT DIBROMIDE, 85-00-7, 9,10-Dihydro-8a,10a-diazoniaphenanthrene dibromide, Reglox, Deiquat, Diquat dibromide [ISO], 6,7-Dihydrodipyrido[1,2-a:2′,1′-c]pyrazine-5,8-diium bromide, 6BDV3T272W, Detrone, Dipyrido(1,2-a:2′,1′-c)pyrazinediium, 6,7-dihydro-, dibromide, Ortho-Diquat, 34417-68-0, Caswell No. 402, Dipyrido[1,2-a:2′,1′-c]pyrazinediium, 6,7-dihydro-, dibromide, Reglon dibromide (USSR), Deiquat dibromide (USSR), 7,10-diazoniatricyclo[8.4.0.02,7]tetradeca-1(14),2,4,6,10,12-hexaene;dibromide, Diquat dibromide 100 microg/mL in Water, HSDB 1700, NSC-116553, EINECS 201-579-4, PP 100, EPA Pesticide Chemical Code 032201, NSC 116553, UNII-6BDV3T272W, 1,1′-Ethylene 2,2′-dipyridylium dibromide, 1,1′-Ethylene-2,2′-bipyridinium dibromide, 1,1′-Ethylene-2,2′-bipyridylium dibromide, 1,1′-Aethylen-2,2′-bipyridinium-dibromid [German], 6,7-Dihydrodipyrido(1,2-a:2′,1′-c)pyrazinedium dibromide, 1,1′-Aethylen-2,2′-bipyridinium-dibromid, 9,10-Dihydro-8a,10a-diazoniaphenanthrene(1,1′-ethylene-2,2′-bipyridylium)dibromide, SCHEMBL52886, DIQUAT DIBROMIDE [MI], DIQUAT DIBROMIDE [HSDB], CHEMBL1599022, DTXSID3024075, DIQUAT DIBROMIDE [MART.], ODPOAESBSUKMHD-UHFFFAOYSA-L, Dipyrido(1,2-a;2′,1′-c)pyrazinediium, 6,7-dihydro-, dibromide, MFCD00078635, AKOS015902672, Dipyrido(1,2-a:2′,1′-c)pyrazinediium, 6,7-dihydro-, labeled with carbon-14, dibromide, NCGC00163714-01, AS-15492, ST020587, HY-122984, CS-0090817, NS00078917, G88708, A917748, Q910903, 9,10-DIHYDRO-8A,10A-DIAZOPHENANTHRENE DIBROMIDE, 6,7-DIHYDRO-DIPYRIDO(1,2-A:2′,1-C)PYRAZINEDIIUM DIBROMIDE, 6,7-dihydropyridino[1,2-a]pyridino[2,1-c]pyrazine, bromide, bromide, DIPYRIDO(1,2-A:2′,1′-C)PYRAZINEDIIUM, 6,7-DIHYDRO-, BROMIDE (1:2)

Application

Diquat dibromide is primarily used as a non-selective herbicide for controlling broadleaf weeds and grasses in agricultural fields, orchards, and non-crop areas. It is also employed as a desiccant to facilitate crop harvesting, particularly in potatoes and seed crops. In aquatic environments, it serves as an algaecide and aquatic weed control agent. Due to its rapid action, it is often used in situations requiring quick vegetation management.

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