Specifications
- Purity
- ≥96% (GC)
- Appearance
- White to yellow and faint beige powder
- Identity
- 1H-NMR
- Water content (K.F.)
- 4.9% (Theory, monohydrate)
Properties
- Solvents
- Soluble in water.
Category: Herbicides
Diquat dibromide is a non-selective contact herbicide that produces desiccation and defoliation. When acting as a herbicide, diquat inhibits photosynthesis (electron transport). In light-exposed plants, it accepts an electron from photosystem I (more specifically ferredoxin), to form its green radical cation. The electron is then transferred to molecular oxygen, producing destructive reactive oxygen species. This compound can be used as a reference compound for analytical studies.
Synonyms | 6,7-dihydrodipyrido[1,2-a:2',1'-c]pyrazinediium dibromide, 1,1′-Ethylene-2,2′-bipyridyldiylium dibromide |
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Purity | ≥96% (GC) |
Appearance | White to yellow and faint beige powder |
CAS-Number | 6385-62-2 |
Molecular Formula | C12H12Br2N2 · H2O |
Molecular Weight | 362.06 |
Identity | 1H-NMR |
Solvents | Soluble in water. |
Smiles | [N+]12=CC=CC=C1C3=[N+](C=CC=C3)CC2.[Br-].[Br-].O |
Shipping | AMBIENT |
Short Term Storage | +4°C |
Long Term Storage | +4°C |
Handling Advice | Very hygroscopic. Store under inert gas. |
Use / Stability | Stable for at least 2 years after receipt when stored at RT. |
Hazard statements | H301 + H311 – H315 – H317 – H319 – H330 – H335 – H372 – H410 |
Precautionary statements | P273 – P280 – P302 + P352 + P312 – P304 + P340 + P310 – P305 + P351 + P338 – P314 |
GHS Symbol | GHS06+GHS08+GHS09 |
Signal word | Danger |
RIDADR | UN2811 |
Transportation | Packing Group II |
References | (1) R.C. Brian, et al., Nature 181, 446 (1958), (2) G. Zweig, et al., Biochim. Biophys. Acta 109, 332 (1965), (3) S.H. Yuen, et al., Analyst 92, 375 (1967), (4) A.D. Dodge, Endeavour 30, 130 (1971), (5) T.B. Gaines & R.E. Linder, Fundam. Appl. Toxicol.7, 299 (1986), (6) G.M. Jones & J.A. Vale, J. Toxicol. Clin. Toxicol. 38, 123 (2000), (7) B. Magalhaes, et al., Hum. Exp. Toxicol. 37, 1131 (2018) |
Quantity | 250 mg, 1 g, Bulk |
cdx-Water content (K.F.) | 4.9% (Theory, monohydrate) |