1. Chinese common name: alpha-cypermethrin (content 95%)

2, 2, Chinese alias: high-efficiency baike, high-efficiency Anlubao, struggle na, fast kill the enemy, insect killing king, Aoling, high-efficiency cypermethrin, best

3. English common name: alpha-cypermethrin

4. English aliases: high-efficiency baike, high-efficiency Anlubao, struggle na, fast kill the enemy, insect killing king, Aoling, high-efficiency cypermethrin, best

5. Molecular formula: C22H19Cl2NO3

6. Pesticide category: pesticides

7. CA registration number: 67375-30-8

8. Chemical classification: Pyrethroids

9. Mode of action:

10. Chemical name: (1R)-cis-2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid-(S)-α-cyano-3-phenoxy Benzyl ester (1S)-cis-2,2-dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid-(R)-a-cyano-3-phenoxybenzyl ester

11. Analysis method: liquid spectrometry (Cyanamid)

12. Precautions: [1] This medicine should not be mixed with alkaline substances to avoid decomposition and failure. [2] Pay attention to the high toxicity of fish and bees.

13. Physical and chemical properties: The original drug is white or cream-colored crystals or powders, with a melting point of 78-81 °C, a boiling point of 200 °C/9.3Pa, and a vapor pressure of 23Pa (20 °C). Alcohol and aromatic hydrocarbon solvents are stable under neutral and acidic conditions, hydrolyzed under strong alkali conditions, and have good thermal (up to 200°C) stability.

14. Toxicity

14.1. Symptoms of poisoning: It is a nerve agent, and the skin at the contact site feels tingling, but there is no erythema, especially around the mouth and nose. Rarely cause systemic poisoning. When exposed to a large amount, it can also cause headache, dizziness, nausea, vomiting, shaking of hands, convulsions or convulsions, coma, and shock in severe cases.

14.2. First aid treatment: [1] There is no special antidote, but symptomatic treatment is available. [2] Gastric lavage may be used when swallowed in large quantities. [3] Do not induce vomiting.

14.3. Precautions: [1] This medicine should not be mixed with alkaline substances to avoid decomposition and failure. [2] Pay attention to the high toxicity of fish and bees.

14.4. Allowable daily intake:

14.5. Acute oral LD50: 79~400mg/kg

14.6. Acute transdermal LD50: >2000mg/kg

14.7. Toxicity in China: Moderate toxicity

14.8. Foreign toxicity: acute oral LD50 (mg/kg): 50~500; acute percutaneous LD50 (mg/kg): 200~2000; inhalation LC50 (mg/L): 0.2~2.0; effects on eyes: Corneal opacity, reversible within 7 days, irritation persists for 7 days; skin effects: severe irritation within 72 hours.

15. Action characteristics: It is a pyrethroid insecticide with high biological activity, which is composed of efficient isomers of cypermethrin. Its insecticidal activity is about 1-3 times that of cypermethrin, so the dosage per unit area is less and the effect is higher. Its application range, control objects, use characteristics and action mechanism are the same as cypermethrin.

16. Environment

16.1. Aquatic organisms: LC50 (96 hours, mg/L) rainbow trout 0.028

16.2. Bees: poisonous; LD50 (24h) 0.059ug/bee, no poison under field conditions

16.3. Natural enemies: LC50 (8 days, mg/kg diet): quail, wild duck>10000, LC50 (14 days): earthworm>100mg/kg soil

16.4. Soil and water conservation: the half-life in soil is about 13 weeks