Pyrazosulfuron-Ethyl
Agricultural Herbicide
Rice Herbicide

Pyrazosulfuron-Ethyl

Selective herbicide specifically designed for rice cultivation, providing excellent control of annual and perennial weeds. Pyrazosulfuron-Ethyl offers broad-spectrum weed management with exceptional crop safety in paddy field conditions.

  • Rice-specific herbicide
  • Broad-spectrum weed control
  • Pre and post-emergence activity
  • Excellent crop selectivity
  • Long residual control
  • Paddy field optimized

Technical Specifications

Chemical Formula: C₁₄H₁₈N₄O₉S
CAS Number: 93697-74-6
EINECS Number: Not yet assigned
Purity (Assay): ≥95% (Technical Grade)
Physical State: White to light yellow powder
Molecular Weight: 414.39 g/mol
Melting Point: 183-184°C
Water Solubility: 1.12 g/L at 20°C
Log Kow: -0.11
Vapor Pressure: 6.7 × 10⁻⁹ Pa at 25°C
Stability: Stable under normal conditions
Packaging Options: 25kg fiber drums, 200kg drums

Applications

Selective Herbicide
Rice Paddy Weed Control
Post-emergence Application
Broad-leaf Weed Control
ALS Inhibitor
Residual Activity
Crop Safety
Low Application Rate
Systemic Translocation
Transplanted Rice
Formulation Production
Professional Agriculture

Industry-Specific Grades

DRAVYOM offers specialized Pyrazosulfuron-ethyl grades tailored for specific agricultural requirements, ensuring optimal performance and regulatory compliance across diverse rice herbicide applications.

Technical Grade
Purity: ≥95% ALS Inhibitor High Efficacy Application: Formulation manufacturing
Premium Grade
Purity: ≥97% Enhanced Stability Low Impurities Application: Premium formulations
Commercial Grade
Purity: ≥93% Cost-effective Bulk Supply Application: Large-scale manufacturing
Research Grade
Purity: ≥98% Analytical Reference Complete Documentation Application: R&D, standards

Quality Standards

DRAVYOM's Pyrazosulfuron-ethyl is manufactured under stringent quality control protocols, meeting international agricultural standards including FAO, EPA, and regulatory specifications. Our technical-grade production ensures consistent performance and regulatory compliance.

ISO 9001:2015 Certified Manufacturing
FAO/WHO Specifications
≥95% Technical Grade Purity
HPLC Purity Verification
Herbicidal Efficacy Validated
Batch-to-Batch Consistency
Complete Certificate of Analysis
Moisture-Protected Distribution

Advanced Chemical Properties & Performance

Pyrazosulfuron-ethyl exhibits exceptional herbicidal properties essential for selective weed control in rice systems. Its sulfonylurea chemistry and systemic activity ensure reliable performance against key grassy and broadleaf weeds with excellent crop selectivity.

Chemical Properties
Molecular Weight: 414.4 g/mol
Solubility (Water): 1.1 mg/L (25°C)
Log Kow: 1.63
Vapor Pressure: 2.0 × 10⁻⁷ Pa (25°C)
Physical Properties
Melting Point: 182-185°C
Decomposition: Decomposes before boiling
Physical State: White crystalline solid
Bulk Density: 0.71 g/cm³
Herbicidal Performance
Mode of Action: ALS inhibitor (HRAC Group B)
Target Enzyme: Acetolactate synthase
Activity Type: Systemic (pre and post emergence)
Weed Spectrum: Grasses and broadleaf weeds
Purity Specifications
Technical Grade: ≥95.0%
Related Compounds: ≤3.0%
Water Content: ≤0.5%
pH (1% solution): 4.5-6.5
Stability Properties
Shelf Life: 2 years (technical grade)
Thermal Stability: Stable to 180°C
Hydrolysis: Stable at pH 7, degrades in alkaline
Photostability: Moderate UV stability

Performance Characteristics

Detailed performance metrics demonstrate Pyrazosulfuron-ethyl superiority in rice weed control with exceptional selectivity, broad spectrum activity, and consistent performance across diverse paddy conditions and weed pressure scenarios.

Weed Control Efficacy

Efficacy: >90% weed control

Broad spectrum activity
Rice Selectivity

Selectivity: Excellent rice tolerance

Safe to rice at all growth stages
Speed of Action

Symptom onset: 3-7 days

Progressive weed control
Residual Activity

Protection: 30-45 days

Extended control period
Paddy Performance

Water conditions: Excellent efficacy

Optimized for flooded rice
Environmental Performance

Working range: 20-35°C optimal

Tropical adapted

Safety Information

Handle with appropriate protective equipment including gloves, safety goggles, and protective clothing. Use in well-ventilated areas and avoid inhalation of dust particles. Follow all agricultural safety protocols and emergency procedures during handling and application.

Caution
Wear Gloves
Aquatic Awareness

Storage & Handling

Store in original sealed containers in a cool, dry, well-ventilated area away from heat sources, direct sunlight, and incompatible materials. Keep containers tightly closed and protect from moisture. Use appropriate storage equipment and ensure proper inventory management for optimal product integrity.

Cool storage (5-25°C)
Keep dry and moisture-free
Protect from direct sunlight
Original sealed containers

Chemical Mechanisms & Reaction Pathways

Pyrazosulfuron-ethyl functions as a selective sulfonylurea herbicide through inhibition of acetolactate synthase (ALS) enzyme in susceptible weeds, enabling precise weed control with predictable biological response pathways.

Mode of Action

Inhibits acetolactate synthase (ALS) enzyme in branched-chain amino acid synthesis

Disrupts protein synthesis and cell division in target weeds
Systemic Activity

Rapid uptake and translocation throughout weed tissues

Provides both foliar and root control activity
Selectivity

Selective activity protects rice crops while controlling weeds

Metabolic differences enable crop safety
Persistence

Extended residual activity for season-long weed control

Balanced persistence with environmental safety

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global agricultural access with complete documentation packages supporting international herbicide standards and agricultural practice validations.

FIFRA Registration

EPA registration compliance for agricultural herbicide applications

Residue Data

Comprehensive crop residue studies and MRL compliance

Crop Safety

Extensive selectivity data and crop tolerance studies

International Standards

Compliant with global herbicide quality regulations

Quality Assurance

Complete analytical documentation and batch certificates

Safety Documentation

Agricultural SDS and handling guidelines for farm use

Technical Support & Value-Added Services

DRAVYOM's agricultural team provides comprehensive weed management support, application guidance, and technical services to optimize Pyrazosulfuron-ethyl performance in your specific rice cultivation programs.

Weed Management
  • IWM program integration strategies
  • Resistance management protocols
  • Application timing optimization
  • Custom spray programs
Technical Services
  • Product efficacy verification
  • Application method consultation
  • Tank mix compatibility testing
  • Performance monitoring support
Field Support
  • On-farm application training
  • Equipment calibration assistance
  • Safety training and protocols
  • Best practices guidance
Supply Solutions
  • Seasonal supply planning
  • Emergency product availability
  • Custom packaging options
  • Regional distribution network

Environmental Impact & Sustainability

Our Pyrazosulfuron-ethyl production emphasizes environmental responsibility through sustainable manufacturing practices, selective weed control, and comprehensive environmental impact management for agricultural operations.

Sustainable Production

Resource-efficient manufacturing with minimal environmental footprint

Water Protection

Careful application practices in rice systems reduce off-target movement

Crop Selectivity

Highly selective activity protects rice while controlling weeds

Application Safety

Low application rates reduce environmental exposure

Environmental Standards

Compliant with environmental protection regulations

Carbon Footprint

Energy-efficient production and transportation optimization

Manufacturing Excellence & Quality Control

DRAVYOM's state-of-the-art herbicide manufacturing facility employs advanced synthesis technology and continuous monitoring systems to ensure consistent Pyrazosulfuron-ethyl quality and performance across all production batches.

Production Process

Advanced synthesis and purification in controlled herbicide-grade environment

Multi-stage purification for technical grade quality
Quality Testing

Comprehensive analytical testing protocol including active ingredient and impurities

HPLC analysis and biological activity verification
Quality Systems

ISO 9001:2015 quality management with herbicide product certification

Continuous improvement and efficacy validation
Packaging Control

Chemical-resistant packaging with contamination prevention measures

Extended shelf life and product integrity assurance

Market Applications & Performance Data

Comprehensive agricultural field data demonstrating Pyrazosulfuron-ethyl effectiveness across diverse rice systems with quantified performance metrics and weed control validations.

Transplanted Rice
Weed Control: 90-95% efficacy against broadleaf weeds Duration: 30-40 days residual activity Application Rate: 20-30 g AI/hectare
Direct Seeded Rice
Control Spectrum: Excellent sedge and broadleaf activity Crop Safety: Outstanding rice tolerance Efficiency: Pre and post-emergence activity
Flooded Systems
Economic Threshold: Cost-effective weed management Resistance Management: ALS rotation benefits Economic Return: 12-18x ROI on weed control investment

DRAVYOM Competitive Advantages

Superior Quality

Consistently exceeds technical specifications with high purity and exceptional weed control performance

Reliable Supply

Guaranteed seasonal availability with strategic inventory management and technical-grade production scheduling

Weed Management Expertise

Dedicated rice agronomy team provides IWM guidance and resistance management support

Quality Assurance

Complete batch documentation with comprehensive efficacy data and crop safety information

Global Standards

International compliance with herbicide regulations and agricultural best practices

Partnership Approach

Collaborative relationships with rice growers and custom weed management program development