CAS 98389-04-9

Pyrazosulfuron

Description:

Pyrazosulfuron is a selective herbicide belonging to the sulfonylurea class, primarily used for controlling various broadleaf and grassy weeds in crops such as rice and other cereals. Its chemical structure features a pyrazole ring, which contributes to its herbicidal activity by inhibiting the enzyme acetolactate synthase (ALS), crucial for amino acid synthesis in plants. This inhibition disrupts the growth and development of target weeds, leading to their eventual death. Pyrazosulfuron is characterized by its relatively low toxicity to mammals and birds, making it a safer option for agricultural use when applied according to recommended guidelines. It is typically formulated as a water-soluble granule or liquid concentrate, allowing for effective application in various environmental conditions. Additionally, it exhibits good soil mobility, which can enhance its efficacy against weeds. However, like many herbicides, it requires careful management to prevent resistance development in weed populations and to minimize potential environmental impacts.

Formula: C₁₂H₁₄N₆O₇S

InChI: InChI=1S/C12H14N6O7S/c1-18-9(6(5-13-18)10(19)20)26(22,23)17-12(21)16-11-14-7(24-2)4-8(15-11)25-3/h4-5H,1-3H3,(H,19,20)(H2,14,15,16,17,21)

InChI key: InChIKey=VXMNDQDDWDDKOQ-UHFFFAOYSA-N

SMILES: S(NC(NC=1N=C(OC)C=C(OC)N1)=O)(=O)(=O)C2=C(C(O)=O)C=NN2C

Synonyms:

• 1H-Pyrazole-4-carboxylic acid, 5-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-1-methyl-
• 5-[(4,6-Dimethoxypyrimidin-2-Ylcarbamoyl)Sulfamoyl]-1-Methylpyrazole-4-Carboxylic Acid
• 5-[[[[(4,6-Dimethoxy-2-Pyrimidinyl)Amino]Carbonyl]Amino]Sulfonyl]-1-Methyl-1H-Pyrazole-4-Carboxylic Acid
• 5-{[(4,6-dimethoxypyrimidin-2-yl)carbamoyl]sulfamoyl}-1-methyl-1H-pyrazole-4-carboxylic acid
• Pyrazosulfuron