Pyrazosulfuron-ethyl

Base Information

• Chemical Name: Pyrazosulfuron-ethyl
• CAS No.: 93697-74-6
• Molecular Formula: C14H18N6O7S
• Molecular Weight: 414.399
• Hs Code.: 29350090
• European Community (EC) Number: 618-964-1
• UNII: 3K2T2626KI
• DSSTox Substance ID: DTXSID9058496
• Nikkaji Number: J319.668B
• Wikidata: Q16855864
• ChEMBL ID: CHEMBL2313155
• Mol file: 93697-74-6.mol

Synonyms:ethyl 5-(4,6-dimethoxypyrimidin-2-ylcarbamoylsulfamoyl)-1-methylpyrazole-4-carboxylate;pyrazosulfuron-ethyl

Chemical Property of Pyrazosulfuron-ethyl

Chemical Property:

• Appearance/Colour: Off-white loosen powder
• Melting Point: 180-182 °C
• Refractive Index: 1.44
• PKA: 12.06±0.70(Predicted)
• Flash Point: 170°C
• PSA: 172.01000
• Density: 1.55 g/cm³
• LogP: 1.45910
• Storage Temp.: 0-6°C
• Solubility.: DMSO (Slightly), Methanol (Slightly, Heated)
• XLogP3: 0.7
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 10
• Rotatable Bond Count: 8
• Exact Mass: 414.09576811
• Heavy Atom Count: 28
• Complexity: 645

Purity/Quality:

99.9% ^*data from raw suppliers

Pyrazosulfuron-ethyl ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Canonical SMILES: CCOC(=O)C1=C(N(N=C1)C)S(=O)(=O)NC(=O)NC2=NC(=CC(=N2)OC)OC
• Uses: Pyrazosulfuron-ethyl is a new highly active sulfonylurea herbicide that has been widely used for weed control in a variety of vegetables and other crops.It prevents the synthesis of essential amino acids by blocking cell division and weed growth.

Technology Process of Pyrazosulfuron-ethyl

There total 3 articles about Pyrazosulfuron-ethyl which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

4,6-dimethoxy-2-aminopyrimidine (36315-01-2,256642-28-1) + ethyl 5-(chlorosulfonyl)-1-methyl-1H-pyrazole-4-carboxylate (88398-82-7) → pyrazolsulfuron-ethyl (93697-74-6)

Guidance literature:

With pyridine; In acetonitrile;

Reference yield:

4,6-dimethoxy-2-aminopyrimidine (36315-01-2,256642-28-1) + sulfonyl diisocyanate (4223-09-0) → pyrazolsulfuron-ethyl (93697-74-6)

Guidance literature:

In acetonitrile;

Reference yield:

→ pyrazolsulfuron-ethyl (93697-74-6)

Guidance literature:

upstream raw materials:

4,6-dimethoxy-2-aminopyrimidine

ethyl 5-(chlorosulfonyl)-1-methyl-1H-pyrazole-4-carboxylate

sulfonyl diisocyanate

Downstream raw materials:

C₁₃H₁₇N₅O₄

ethyl 1-methyl-5-sulfamoyl-1H-pyrazole-4-carboxylate

Refernces

• 1、 -. "Herbicide antidotes as safeners for reducing phytotoxicity resulting from synergistic interaction between herbicides and other pesticides". . . Retrieved 2008/06/13.
• 2、 -. "Process for the preparation of sulfonylurea derivatives and intermediates for this process". . . Retrieved 2008/06/13.