Lambda-Cyhalothrin (CAS 91465-08-6): Comprehensive User Guide for Agricultural & Public Health Applications
Table of Contents
1. Product Overview & Technical Specifications
Lambda-Cyhalothrin (CAS 91465-08-6) is a highly potent Type II synthetic pyrethroid insecticide with the following technical parameters:
| Parameter | Specification |
|---|---|
| Chemical Name | (R)-α-cyano-3-phenoxybenzyl (1S,3S)-3-[(Z)-2-chloro-3,3,3-trifluoroprop-1-enyl]-2,2-dimethylcyclopropanecarboxylate |
| CAS Number | 91465-08-6 |
| Molecular Formula | C23H19ClF3NO3 |
| Molecular Weight | 449.85 g/mol |
| Appearance | Light yellow to amber viscous liquid |
| Purity | ≥92% (Technical Grade) |
| Solubility | 0.005 mg/L in water (20°C), soluble in most organic solvents |
2. Key Applications & Usage Scenarios
2.1 Agricultural Pest Control
- Crop Protection: Effective against Lepidoptera, Coleoptera, and Hemiptera in cotton, vegetables, and cereals
- Resistance Management: Rotation partner for neonicotinoid and organophosphate insecticides
2.2 Public Health Vector Control
- Mosquito Management: WHO-recommended for malaria vector control (0.025-0.05% concentration)
- Indoor Residual Spraying: Provides 3-6 months protection on treated surfaces
3. Performance Comparison: Lambda-Cyhalothrin vs Alternatives
| Parameter | Lambda-Cyhalothrin | Beta-Cyfluthrin | Deltamethrin |
|---|---|---|---|
| Knockdown Speed (min) | 8-12 | 10-15 | 15-20 |
| Residual Activity (days) | 45-60 | 30-45 | 60-90 |
| Mammalian Toxicity (LD50 rat oral) | 79 mg/kg | 250 mg/kg | 135 mg/kg |
4. Implementation Best Practices
4.1 Agricultural Application Protocol
Cotton Bollworm Control: Apply 15-20 g ai/ha in 300-500 L water/ha. Optimal timing at egg hatch stage.
4.2 Vector Control Implementation
Indoor Residual Spraying: Mix 25% WP formulation at 30 mg/m² using compression sprayers with flat fan nozzles.
5. Verified Customer Success Stories
Case Study 1: GreenFields AgriCo (China)
Challenge: Resistance management in cotton (Helicoverpa armigera)
Solution: Rotational program with Lambda-Cyhalothrin at 50 ml/ha
Results: 92% pest reduction, 18% yield increase
Case Study 2: VectorFree Health Services (Nigeria)
Challenge: Malaria vector control in high-resistance areas
Solution: IRS with Lambda-Cyhalothrin 25% WG
Results: 76% reduction in mosquito density, 4-month residual efficacy
6. Professional Support & Consultation
Contact our technical experts for customized solutions:
Email: info@vivalr.com
Tel: (86) 15866781826
Our team provides:
- Resistance management planning
- Custom formulation development
- Regulatory compliance assistance



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