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| CAS number | 407-25-0 |
| Molecular formula | C4F6O3 |
| Product name | Trifluoroacetic anhydride |
| Molecular Structure |  |
Appearance：colourless liquid
Density：1.641
Boiling Point：38-40ºC
Melting Point：-63.5ºC
Flash Point：-26ºC
Refractive Index：1.269
Water Solubility：Hydrolysis
Stability：Stable, but moisture sensitive. Reacts with water to liberate hydrogen (flammable). Incompatible with water, strong oxidizing agents.
Storage Condition：2-8ºC
Vapor Pressure：6.28 psi ( 20 °C)
Sumithion (CAS No. 407-25-0) is a highly effective, broad-spectrum organophosphorus insecticide used to control a wide range of agricultural and horticultural pests. Sumithion has been widely used in agriculture for the control of insects, mites and sucking pests, such as caterpillars, aphids, thrips, mole crickets, greasy cutworms, armyworms and chinch bugs. Sumithion is known to act quickly and effectively, meaning only one application at a predetermined rate is typically required.
When applied in the manner recommended by the manufacturer, Sumithion is safe to beneficial insects, mammals and birds. It is generally non-volatile and degrades rapidly under alkaline conditions and in the presence of sunlight. Sumithion binds quickly to soils but is still subject to leaching in some cases.
While Sumithion is highly effective, it can be a hazard to humans and other mammals if not used properly. It is known to be an oral toxin and can cause mild to severe gastrointestinal upset with low acute toxicity in mammals. It can also cause neurotoxicity and dizziness in humans, particularly if it is inhaled or comes into contact with the skin. It is advised to wear protective clothing when applying Sumithion and wash affected areas of the skin if contact does occur.
Overall, Sumithion is a highly effective insecticide for controlling a wide range of agricultural and horticultural pests, but should only be used in the manner advised by the manufacturer.
