Pirimicarb (98%TC, 25%WP, 50%WP, 25%WDG, 50%WDG)
Molecular weight: 238.3.
CAS No.: 23103-98-2.
Specification: 98%TC, 25%WP, 50%WP, 25%WDG, 50%WDG.
Physical & Chemical Properties
Appearance: Dark brown to yellow liquid.
Melting Point: 130 °C.
Vapour Pressure: 2.10 x 10-3mPa at 25°C.
Stability: Soluble in water 270g/L, and soluble in most organic solvents.
Molecular weight: 238.29
Density: 1.146 g/cm-3
5.Flash Point: 179.6 °C
Mode of Action
Selective systemic insecticide with contact, stomach and respiratory action. Absorbed by the roots, and translocated through the xylem. Penetrates the leaves, but is not translocated extensively.
Oral Acute oral LD50 for female rats 142, mice 107, dogs 100-200 mg/ kg.
Skin and eye Acute percutaneous LD50 for rats >2000, rabbits >500 mg /kg.
Non-irritating to skin; mild irritant to eyes (rabbits).
Moderate skin sensitizer (guinea pigs test).
Inhalation: LC50 (4 h) for female rats 0.86 mg /kg.
A selective aphicide used in cereals, fruit, ornamentals, strawberries, potatoes, sugar beet, fodder beet, cotton, oilseed rape, tobacco, and glasshouse crops, effective against organophosphorus-resistant Myzus persicae.
A selective aphicide used in a wide range of crops, including cereals and oilseeds (at 125-250 g/ha), potatoes and other vegetables (at 125-375 g/ha), fruit (at 250-750 g/ha), ornamentals and other non-food uses (at 50-500 g/ha). Effective against organophosphorus-resistant.