Pyrazosulfuron
- CAS No.
- 98389-04-9
- Chemical Name:
- Pyrazosulfuron
- Synonyms
- yrazosulfuron;Pyrazosulfuron;Crisaborole Impurity 85;5-[(4,6-dimethoxypyrimidin-2-ylcarbamoyl)sulfamoyl]-1-methylpyrazole-4-carboxylic acid;5-(4,6-Dimethoxy-2-pyrimidinylaminocarbonylsulfamoyl)-1-methyl-1H-pyrazole-4-carboxylic acid;1H-PYRAZOLE-4-CARBOXYLIC ACID 5-[[[[(4 6-DIMETHOXY-2-PYRIMIDINYL)AMINO]CARBONYL]AMINO]SULFONYL]-1-M;5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-1h-pyrazole-4-carboxylic acid;1H-Pyrazole-4-carboxylic acid, 5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-
- CBNumber:
- CB3855467
- Molecular Formula:
- C12H14N6O7S
- Molecular Weight:
- 386.34
- MDL Number:
- MOL File:
- 98389-04-9.mol
- MSDS File:
- SDS
| Melting point | 202-204 °C |
|---|---|
| Density | 1.71±0.1 g/cm3(Predicted) |
| pka | 2.48±0.36(Predicted) |
| FDA UNII | XRH8L723X7 |
Pyrazosulfuron Chemical Properties, Uses, Production
Chemical Properties
Appearance of the original drug is gray-white crystals, specific gravity 1.44 (20C), melting point 181-182C, 20C vapor pressure 0.0147mPa (20C); solubility (20C): in water, hexane, chloroform, benzene, acetone solubility of 1.45*10-2g/l, 0.2g/L, 234.4g/L, 15.6g/L. 31.7g/L. The original content of active ingredients is less than 98%, stable storage under normal conditions, 31.7g/L. The content of the original active ingredient is not less than 98%, and the storage is stable under normal conditions.
Production Methods
Industrial production of pyrazosulfuron is usually as the ethyl variant and typically begins with synthesis of the substituted pyrazole core, often through condensation of a beta-ketoester with hydrazine derivatives, followed by chlorination or activation at the appropriate position to enable later coupling. In parallel, the sulfonamide fragment is prepared by reacting a chlorosulfonyl intermediate with a selected amine to generate the sulfonyl chloride or sulfonamide precursor. These two components are then united through formation of the sulfonylurea bridge, usually by treating the sulfonamide with an isocyanate or carbamoyl-activating reagent and subsequently coupling it to the activated pyrazole moiety. After the key bond forming step, the crude product is purified by crystallization or solvent washing to remove unreacted materials and by-products.
Definition
ChEBI: Pyrazosulfuron is a member of pyrazoles.
Mechanism of action
Broad-spectrum activity, absorbed by roots and translocated through out plant by controlling the synthesis of amino acids. Inhibits plant amino acid synthesis - acetohydroxyacid synthase AHAS
Pesticide Type
Herbicide
Pyrazosulfuron Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
| Chengdu Ai Keda Chemical Technology Co., Ltd. | 4008-755-333 18080918076 | 800078821@qq.com | China | 9706 | 55 |
| NCE Biomedical Co.,Ltd. | 4000-027-021 |24 +86-13986109188 | +86-15623472865 | +81-08033611988 | China | 1490 | 55 | |
| VOT INTERNATIONAL BUSINESS CO.,LTD | 0536-2456718 | China | 226 | 55 | |
| Shanghai Na Qian Chemical Technology Co. Ltd. | 13598610367 13598610367 | 2841375912@qq.com | China | 3759 | 52 |
| Alta Scientific Co., Ltd. | 022-6537-8550 15522853686 | sales@altasci.com.cn | China | 4508 | 55 |
| Wuhan Netcom Electronic Commerce Limited | 18064670521 | 2355935187@ycphar.com | China | 4870 | 58 |
| Aishilun biotechnology (Shanghai) co., LTD | 021-50676523 18019098996 | info@acelybio.com | China | 3950 | 58 |
| Dideu Industries Group Limited | +8617392712697 | 1022@dideu.com | China | 29090 | 58 |
View Latest Price from Pyrazosulfuron manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-13 | Pyrazosulfuron
98389-04-9
|
$1.00 | 1g | 99.0% | 100 kg | Career Henan Chemical Co |
-
- Pyrazosulfuron
98389-04-9
- $1.00
- 99.0%
- Career Henan Chemical Co
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