Pyrazolynate

• CAT Number: I008845
• CAS Number: 58011-68-0
• Molecular Formula: C19H16Cl2N2O4S
• Molecular Weight: 439.307
• Purity: ≥95%
• Solubility: Soluble in DMSO
• Storage: 0 - 4 °C for short term, or -20 °C for long term
• IUPAC Name: [4-(2,4-dichlorobenzoyl)-2,5-dimethylpyrazol-3-yl] 4-methylbenzenesulfonate
• InChI: InChI=1S/C19H16Cl2N2O4S/c1-11-4-7-14(8-5-11)28(25,26)27-19-17(12(2)22-23(19)3)18(24)15-9-6-13(20)10-16(15)21/h4-10H,1-3H3
• InChIKey: ASRAWSBMDXVNLX-UHFFFAOYSA-N
• SMILES: CC1=CC=C(C=C1)S(=O)(=O)OC2=C(C(=NN2C)C)C(=O)C3=C(C=C(C=C3)Cl)Cl

Pyrazolynate (Cat.No:I008845) is a herbicide studied to evaluate the hydrolyzation to destosyl pyrazolynate (DTP).

Reference

1:Bull Environ Contam Toxicol. 2012 Nov;89(5):985-9. doi: 10.1007/s00128-012-0793-6. Epub 2012 Aug 23. Behavior of herbicide pyrazolynate and its hydrolysate in paddy fields after application.Kubo T,Ohno M,Nagasawa S,Kose T,Kawata K, PMID: 22914901 DOI: 10.1007/s00128-012-0793-6 Abstract: Behavior of the herbicide pyrazolynate, 4-(2,4-dichlorobenzoyl)-1,3-dimethylpyrazol-5-yl p-toluenesulfonate, in paddy water and soil after application to paddy fields was investigated to evaluate the hydrolyzation to destosyl pyrazolynate (DTP), 4-(2,4-dichlorobenzoyl)-1,3-dimethyl-5-hydroxypyrazole. The respective maximum concentrations of pyrazolynate and DTP were 440-1,240 and 200-260 μg/L, respectively, in the paddy water, and 610-860 μg/kg dry and 460-730 μg/kg dry in the paddy soil. The applied pyrazolynate was drained from the paddy fields as DTP. The runoff ratios of DTP from the paddy fields were calculated as 19 % ± 14 %. The respective mean values of the half-lives of pyrazolynate and DTP were 0.87 ± 0.091 and 17 ± 1.4 days in the paddy water and 2.2 ± 0.70 and 26 ± 2.1 days in the paddy soil, respectively.