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Red Sun Diquat Dibromide is a fast-acting, non-selective herbicide with added desiccant functionality. By disrupting photosynthetic electron transport in green plants, it rapidly damages cell membranes, causing visible chlorosis and necrosis while becoming inactive upon contact with soil, thus reducing residual risks.
Extensively applied in farmlands, orchards, non-cultivated areas, and for pre-harvest weed control, Diquat Dibromid is also used for potato and sweet potato vine desiccation. Recommended application involves 40–50 kg water per mu for weed control or 30–45 kg per mu for rice desiccation, applied 5–7 days before harvest for optimal results.
Parameter | Details |
Product Name | Diquat Dibromide CAS (85-00-7) C₁₂H₁₂Br₂N₂ |
Appearance | Colorless to light yellow crystals |
Vapor Pressure | < 0.01 MPa |
Density (25°C) | 1.61 g/cm³ |
Water Solubility (20°C) | 700 g/L |
Solubility in Ethanol | Slightly soluble |
Solubility in Carbonyl Solvents | Slightly soluble |
Solubility in Non-Polar Solvents | Insoluble |
Stability | Stable in acidic and neutral solutions |
Alkaline Conditions | Unstable |
Decomposition Temperature | > 300°C |
Diquat Dibromide belongs to HRAC Group 22.
It captures electrons from ferredoxin in Photosystem I (PS I).
This process triggers the formation of O₂•⁻ and H₂O₂.
These reactive species disrupt lipid bilayers and mitochondrial membranes.
It acts by contact without systemic translocation.
Free radical generation depends on sunlight and leaf moisture.
Water-soaked spots appear within 2–4 hours.
Browning, wilting, and desiccation occur within 24–48 hours.
It controls cereals, grasses, and broadleaf weeds effectively.
At 150–300 g ai ha⁻¹, >95% leaf inactivation occurs within 24 hours.
Weed control exceeds 90% within 7 days in multi-site trials.
Water volumes of 200–400 L ha⁻¹ and pH 5–6 enhance activity.
Alternating or mixing with glyphosate and glufosinate slows resistance spread.
Few resistant biotypes have been reported to date.
Soil contact causes instant adsorption to clay and organic matter.
DT₅₀ is less than one day.
No root uptake allows for rapid harvesting with minimal residue risk.
Field data show water-soaked spots appear within 2–4 hours.
More than 95% green leaf inactivation is achieved within 24 hours.
This enables quick field turnover and labor efficiency.
Cations bind instantly to clay and organic matter in soil.
DT₅₀ is less than one day, allowing fast crop rotation.
Residue risk remains minimal across varied soil types.
Approved for both aquatic weed control and as a crop desiccant.
Suitable for agriculture and municipal vegetation management.
Offers compliance across diverse application markets.
Compatible with SL and AS formulations.
Works well when mixed with glyphosate or glufosinate.
Reduces resistance development in weed populations.
Backed by multi-site production and ISO/ESG certifications.
Annual capacity ensures consistent delivery schedules.
Risk of supply interruptions remains low.
Active ingredient costs are 15–20% lower than glufosinate.
Improves margins for distributors and end users.
Enhances competitiveness in price-sensitive markets.
Proprietary eco-friendly ring synthesis technology.
Automated post-treatment with real-time monitoring.
25,000 tons per year, largest domestic producer.
Achieves zero discharge of waste gas, water, and solids.
Independent pyridine coupling method with patents.
10,000 tons per year, leading domestic scale.
Reduces impact on soil and follow-up crops.
Improves spray coverage and active ingredient uptake.
Holds ISO and other global standard approvals.
Suitable for dryland, paddy fields, and cash crops.
Controls annual broadleaf weeds.
Apply 150–200 ml/acre by foliar directed spray.
Used for crop desiccation before harvest.
Apply 150–200 g/acre by foliar directed spray.
Controls weeds under trees.
Apply 150–200 ml/acre by targeted spray.
For leaf drying before harvest.
Apply 200–250 g/acre by foliar directed spray.
Product name, batch number, and date clearly labeled.
Brown homogeneous liquid verified visually.
Measured concentration 204.3 g/L, above 200 g/L standard.
pH measured at 5.9 within 4.0–8.0 limits.
Product stable under 20× dilution testing.
Foaming volume 10 mL, below 60 mL limit.
Detected 460 ppm, under 750 ppm requirement.
Detected 4.5 ppm, below standard threshold.
Total tripyridine measured 0.1 ppm, within limits.
Measured 0.1%, meeting quality specification.
Support in adjuvant selection and viscosity optimization.
Multi-location trials with data analysis support.
Assistance in toxicology and residue studies under GLP standards.
Localization compliance for labels and safety documents.
Custom formulations and branding services available.
Tailored packaging for regional or client needs.
Online modules for product use and safety practices.
24-hour support by technical and regulatory teams.
Real-time service ticket tracking and updates provided.
