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Carnavir, also known as carbaryl, is a carbamate insecticide, yellow-brown powder, melting point 142°C, density 1.232 (20°C), solubility in water (20°C) 120mg/L, easily soluble in polar organic solvents , stable in neutral and weak environments, hydrolyzed in alkaline medium to form 1-naphthol, stable under light and heat conditions