58011-68-0

Basic information

• Product Name: PYRAZOLATE
• Synonyms: (2,4-dichlorophenyl)(1,3-dimethyl-5-(((4-methylphenyl)sulfonyl)oxy)-1h-pyrazol-4-yl)-methanon;(2,4-dichlorophenyl)(1,3-dimethyl-5-(((4-methylphenyl)sulfonyl)oxy)-methanon;1h-pyrazol-4-yl)-;4-(2,4-dichlorobenzoyl)-1,3-dimethyl-1h-pyrazol-4-op-toluenesulfonate;4-(2,4-dichlorobenzoyl)-1,3-dimethyl-5-pyrazolylp-toluenesulfonate;sw-751;SANBIRD;PYRAZOLYNATE
• CAS NO: 58011-68-0
• Molecular Formula: C₁₉H₁₆Cl₂N₂O₄S
• Molecular Weight: 439.31
• Mol File: 58011-68-0.mol

Chemical Properties

• Melting Point: 118～122℃
• Boiling Point: 610.7°Cat760mmHg
• Flash Point: 323.1°C
• Appearance: /
• Density: 1.2815 (rough estimate)
• Vapor Pressure: 7.44E-15mmHg at 25°C
• Refractive Index: 1.6000 (estimate)
• Storage Temp.: 0-6°C
• PKA: -1.53±0.10(Predicted)
• CAS DataBase Reference: PYRAZOLATE(CAS DataBase Reference)
• NIST Chemistry Reference: PYRAZOLATE(58011-68-0)
• EPA Substance Registry System: PYRAZOLATE(58011-68-0)

Safety Data

• Hazard Codes: Xn
• Statements: 20
• Hazardous Substances Data: 58011-68-0(Hazardous Substances Data)

Usage

Uses

Used in Agriculture:
PYRAZOLATE is used as a herbicide for the selective control of annual and some perennial grass and broadleaf weeds in paddy rice. This application is particularly relevant in the Far East, where it is marketed under the brand name Sanbird. The use of PYRAZOLATE helps to improve crop yield by reducing the competition from weeds, ensuring that the rice plants can grow and develop more effectively.

Metabolic pathway

Hydrolysis of pyrazolate (DTP) in buffer solutions and in artificial gastric and intestinal fluids proceeds predominantly through base- and acid-catalyzed processes in the regions above pH 7 and below pH 3, respectively, whereas both processes occur between pH 3 and pH 7. The hydrolysis products are p- toluenesulfonic acid and 4-(2,4-dichlorobenzoyl)-1,3- dimethyl-5-hydroxypyrazole. The metabolism study of DTP in fish, rats, plant, soils, and soil microorganisms shows that the metabolites in these systems are mostly derived from the herbicidal entity of pyrazolate resulting from N-demethylation and hydroxylation followed by further oxidation of the methyl group of the pyrazole ring and the cleavage of the carbonyl linkage (see Nakagawa et al.).

InChI:InChI=1/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

Relevant articles and documents

NOXIOUS ARTHROPOD CONTROL AGENT CONTAINING AMIDE COMPOUND

An object of the present invention is to provide a compound having the controlling activity on a noxious arthropod, and a noxious arthropod controlling agent containing an amide compound of formula (I): wherein X represents a nitrogen atom or a CH group, p represents 0 or 1, A represents a tetrahydrofuranyl group or the like, R1, R2, R3, R4, R5, R6 and R7 represent a hydrogen atom or the like, n represents 1 or 2, Y represents an oxygen atom or the like, m represents any integer of 0 to 7, and Q represents a C1-8 chain hydrocarbon group optionally having a phenyl group or the like, has the excellent noxious arthropod controlling effect.

2-aryl-4,6-dihalopyrimidines as antidote for protecting cultivated plants from phytotoxic damage caused by herbicides

2-Aryl-4,6-dihalopyrimidines of the formula I STR1 wherein Hal is halogen, E is unsubstituted or substituted phenyl, thienyl or furyl, and Y is a group bound by way of nitrogen, oxygen or sulfur, are able as antidote or `safener` to protect cultivated plants against the phytotoxic action of herbicides. Cultivated plants concerned are particularly sorghum, cereals, maize, rice and soya bean, and herbicides concerned are chloroacetanilides or other herbicidally effective substances.

Herbicidal compositions

Herbicidal compositions containing as an active ingredient one or more of the pyrazole compounds having the formula STR1 (wherein R1 represents hydrogen atom or a lower alkyl group, R2 represents a lower alkyl group or a lower alkenyl group, X represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkoxy group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group or an aliphatic acyl group and n is an integer of 1 to 4 and when n is 2, 3 or 4, X's may be the same or different), salts thereof and organic acid esters thereof, as well as new pyrazole compounds having herbicidal activities and the formula STR2 (wherein R1 represents hydrogen atom or a lower alkyl group, R2 represents a lower alkyl group or a lower alkenyl group Z represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkoxy group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group, an aliphatic acyl group or benzoyl group, n is an integer of 1 to 4, when n is 2,3 or 4, Z's may be the same or different and Y represents oxygen atom or sulfur atom; provided that those wherein R1 and R2 are methyl groups, Z is chlorine atom at 2-position, n is 1 and Y is oxygen atom and wherein R1 and R2 are methyl groups, Z is nitro group at 4-position, n is 1 and Y is oxygen atom are excluded. These pyrazole compounds are prepared in a conventional manner.