100784-20-1
Halosulfuron methyl
CAS: 100784-20-1
Molecular Formula: C13H15ClN6O7S
100784-20-1 - Names and Identifiers
100784-20-1 - Physico-chemical Properties
| Molecular Formula | C13H15ClN6O7S |
| Molar Mass | 434.81 |
| Density | 1.618 |
| Melting Point | 175-177°C |
| Water Solubility | Insoluble in water |
| Appearance | neat |
| Color | White to Light yellow to Light orange |
| Merck | 14,4602 |
| pKa | 11.96±0.70(Predicted) |
| Storage Condition | 0-6°C |
| Refractive Index | 1.663 |
| Physical and Chemical Properties | Pure white powder solid; Melting point 175.5-177.2°C; Density 1.618(20°C); Vapor pressure:<1.0*10 ^-5Pa(25°C). partition coefficient: Log P = -0.0186(pH 7,23±2°C); Solubility (20°C,g/l): 0.015(pH 5), 1.65(pH 7), methanol 1.62; Storage stability under conventional conditions; p Ka = 3.44(22°C). preparation: 95% TC,75% WDG. Applicable crops: wheat, corn, rice, sugarcane, lawn, etc. |
| Use | Control object: Chlorpyrisulfuron-methyl is mainly used to control broad-leaved weeds and saidae weeds, such as Cang ear, mancanthus, ragweed, inverted amaranth, Wild Watermelon seedlings, Polygonum, purslane, Solanum nigrum, Cassia, Petunia, bergamot, etc. Method of use: Pre-seedling application dose: 70-90g active ingredient/ha; Post-seedling dose: 18-35g active ingredient/ha. Pre-seedling of maize |
100784-20-1 - Risk and Safety
| Hazard Symbols | N - Dangerous for the environment |
| Risk Codes | 50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | UQ6392606 |
| Hazard Class | 9 |
| Packing Group | III |
| Toxicity | LD50 orally in rats: 8865 mg/kg; dermally in rabbits: >2000 mg/kg; LC50 (4 hr) in rats: >4.3 mg/l (Suzuki) |
100784-20-1 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | chlorpyrazosulfuron-methyl, pure product is a white powdery solid, mainly used for wheat, corn, rice, sugar cane, lawn, etc. Broad-leaved weeds and sedge, such as Cang Er, Mantoluo, ragweed, amaranth, wild watermelon seedlings, Polygonum, Portulaca oleracea, Solanum nigrum, cassia, morning glory, aconite, etc. The agent can inhibit the biosynthesis of branched chain amino acids leucine, isoleucine and valine in plants, but improper use may cause phytotoxicity to crops, and there are differences in the resistance of sulfonylurea herbicides between different crops or different varieties of the same crop. Chlorpyrazosulfuron is a sulfonylurea herbicide developed by Nissan Chemical Company and Monsanto Company. Its target is acetolactate synthase. China's corn planting area is large and there are many varieties. Previous studies have shown that it can effectively control malignant weeds such as Abutilon, Abutilon, and Commelina communis in corn fields, and its safety to corn is higher than that of nicosulfuron, and its application prospects are broad. Fig. 1 is the structural formula |
| mechanism of action | the agent can inhibit the biosynthesis of branched chain amino acids leucine, isoleucine and valine in plants, thus inhibiting the growth of plant roots. the bioassay results of inhibition on main root length of plants such as corn, potted plants and rice are basically the same. When the root system of the plant is inhibited by chlorpyrazrosulfuron, the symptoms of phytotoxicity are also the most obvious; on the contrary, the species with less inhibited plant root length grows strongly, and there is no obvious phytotoxicity after that, and the inhibition rate of plant height is very low. The synthesis ability of the branched-chain amino acids leucine, isoleucine, and valine in different plants is different, that is, the drug resistance is different. Therefore, chlorpyrazrosulfuron uses this feature to weed, if the quantity of this product is appropriate, it has basically no effect or little effect on wheat, corn, rice, and sugarcane, but it can greatly inhibit the biosynthesis of branched chain amino acids leucine, isoleucine, and valine in weeds. (2016-01-22) |
| usage and dosage | chlorpyrazosulfuron-methyl is mainly used to control broad-leaved weeds and Shake weeds, such as Cang Er, mantuoluo, ragweed, amaranth, wild watermelon seedlings, polygonum, purslane, Solanum nigrum, cassia, morning glory, aconite, etc. The method of use can be used before and after seedling. You can spray the medicine and spray it on the plants. The dosage before seedling is 70-90g of active ingredient/ha. After seedling, it is 18-35g of active ingredient/ha. |
| store | this product should be stored under stable conditions under normal temperature and pressure, avoid contact with strong oxidant, sealed storage, and stored in a cool and dry warehouse. |
| Uses | Mainly used to control broad-leaved weeds and Cyperaceae weeds, such as Abutilon, Cang Er, Datura, Ambrosia, Amaranthus, Wild Watermelon Seedling, Polygonum, Portulaca oleracea, Solanum nigrum, Cassia nigrum, Morning Glory, Fragrant aconite, etc. Suitable crops such as wheat, corn, rice, sugar cane, lawn, etc. Both before and after seedling. The dosage was 70~90g/ha before seedling and 18~35g/ha after seedling. Because it is rapidly metabolized into harmless substances in crops, it is safe for crops. It should be used together with the antidote MON 13900 before corn seedlings to reduce the damage to corn. Suitable for weeding wheat, corn, rice, sugar cane, lawn, etc. Control object: chlorpyrazosulfuron-methyl is mainly used to control broad-leaved weeds and Shake weeds, such as Cang Er, Tuo Manluo, ragweed, amaranth, wild watermelon seedlings, Polygonum, Portulaca oleracea, Solanum nigrum, Cassia nigrum, Morning Glory Bulia, Fragrant aconite, etc. Usage: Both before and after seedling can be applied. The pre-seedling application dose is 70-90g of active ingredient/ha; After seedlings: 18-35g of active ingredient/ha. Before seedlings in corn fields, make |
Last Update：2024-04-09 20:52:54
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Product Name: Pyrazosulfuron Impurity 3 (Halosulfuron-methyl) Visit Supplier Webpage Request for quotationCAS: 100784-20-1
Tel: 0714-3999186
Email: 2853786052@qq.com
Mobile: 86+15671228036
QQ: 2853786052
Wechat: 15671228036
Product Name: Halosulfuron methyl Request for quotation
CAS: 100784-20-1
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
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Product List: View Catalog
CAS: 100784-20-1
Tel: 0086-551-65418684
Email: sales@tnjchem.com
info@tnjchem.com
Mobile: 0086 189 4982 3763
QQ: 2881500840
Wechat: 0086 189 4982 3763
WhatsApp: 0086 189 4982 3763
Product List: View Catalog
Multiple Specifications
Product Name: Halosulfuron Methyl Visit Supplier Webpage Request for quotationCAS: 100784-20-1
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409
Wechat: 18301782025
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