Cloquintocet-mexyl

English Name: Cloquintocet - mexyl Chemical Name: 1 - methylhexyl (5 - chloroquinolin - 8 - yloxy)acetate Molecular Formula: C18H22ClNO3 Molecular Weight: 335.83 CAS Number: 99607 - 70 - 2 Customs Code: 2933490090 Structural Formula: II. Physicochemical Properties Cloquintocet - mexyl is a colorless, light yellow or off - white powder. It is stable in neutral and acidic environments, but prone to hydrolysis under alkaline conditions. - **Melting Point**: 69.4°C (61.4 - 69.0°C for the technical grade) - **Density**: 1.05 g/cm³ (at 20°C); the predicted density is 1.163 ± 0.06 g/cm³ - **Solubility**: Its solubility in water varies with pH. At pH 5.0, it is 0.54 mg/L; at pH 7.0, it is 0.60 mg/L; at pH 9.0, it is 0.47 mg/L (at 25°C). In ethanol, it is 190 g/L; in acetone, 340 g/L; in toluene, 360 g/L; in n - hexane, 0.14 g/L; in n - octanol, 11 g/L (at 25°C). - **Stability**: At 25°C, the DT50 at pH 7 is 133.7 days. III. Uses and Applications Cloquintocet - mexyl is mainly used as a pesticide intermediate. It is a safener for clodinafop - propargyl, which can improve the acceptance of plants to the herbicide clodinafop - propargyl and accelerate the detoxification of clodinafop - propargyl in cereals. It is usually used in combination with herbicides in a certain proportion to control annual grasses in small grains. The ratio with clodinafop - propargyl and pinoxaden is 1:4, and with pyroxsulam, it is 1:1 - 1:3. It is also used in combination with florpyrauxifen - benzyl, benzofenap, and (R)-fenoxaprop - P - ethyl. IV. Safety and Toxicity Cloquintocet - mexyl may cause irritation to the skin, eyes, and respiratory tract. The acute oral LD50 values for rats and mice are both greater than 2000 mg/kg, and the acute dermal LD50 values are also greater than 2000 mg/kg. The LD50 values for mallard ducks and quails are greater than 2000 mg/kg, and the LC50 values for aquatic organisms such as rainbow trout and carp are also relatively high, indicating relatively low toxicity to these organisms. However, during use, safety protection should still be noted to avoid inhaling dust or contacting the skin and eyes. V. Storage and Disposal Cloquintocet - mexyl should be stored in a dry and sealed environment with the temperature controlled at 2 - 8°C. During handling and use, appropriate protective gloves, protective clothing, safety goggles, and masks should be worn to avoid inhaling dust or contacting the skin and eyes. In case of skin contamination or eye contact, immediately rinse with plenty of water and seek medical help. Please note that the above information is for reference only. When using it specifically, product instructions and safety operation procedures should be followed.