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58011-68-0

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Basic Information
CAS No.: 58011-68-0
Name: PYRAZOLATE
Article Data: 4
Molecular Structure:
Molecular Structure of 58011-68-0 (PYRAZOLATE)
Formula: C19H16 Cl2 N2 O4 S
Molecular Weight: 439.319
Synonyms: A 544; H468T; Pyrazolate; Pyrazolynate; SW 751; Sanbird
Density: 1.42g/cm3
Melting Point: 118～122℃
Boiling Point: 610.7°Cat760mmHg
Flash Point: 323.1°C
Hazard Symbols: Xi
Risk Codes: R36/37/38
Safety: Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. When heated to decomposition it emits toxic fumes of Cl−, SOx, and NOx. See also SULFONATES.
PSA: 86.64000
LogP: 5.42320
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Chemistry

IUPAC Name: [4-(2,4-Dichlorobenzoyl)-2,5-dimethylpyrazol-3-yl] 4-methylbenzenesulfonate
The MF of Pyrazolate (CAS NO.58011-68-0) is C19H16Cl2N2O4S.

                      
The MW of Pyrazolate (CAS NO.58011-68-0) is 439.3123.
Synonyms of Pyrazolate (CAS NO.58011-68-0): (2,4-Dichlorophenyl)[1,3-dimethyl-5-[[(4-methylphenyl)sulfonyl]oxy]-1H-pyrazol-4-yl]methanone ; Pyrazolynate ; Sanbird
Index of Refraction: 1.632
Apperance: White crystal 
Density: 1.42 g/ml 
Flash Point: 323.1 °C
Boiling Point: 610.7 °C
Storage temp: 0-6 °C

Uses

 Pyrazolate (CAS NO.58011-68-0) is pyrazole herbicides which inhibit chlorophyll biosynthesis leading weed to death.

Production

 1,3-Dimethyl pyrazolone-5 with 2,4-dichloro-benzoyl chloride obtained 1,3-dimethyl-4-(2,4-2 chloro-benzene formyl)-5-hydroxy-pyrazole in the presence of solvent and alkali. 1,3-Dimethyl-4-(2,4-2 chloro-benzene formyl)-5-hydroxy-pyrazole condensation with tosyl chloride obtained Pyrazolate.

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 3681mg/kg (3681mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
mouse LD50 oral > 5gm/kg (5000mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
mouse LD50 skin > 5gm/kg (5000mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
mouse LD50 subcutaneous > 8300mg/kg (8300mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
rat LD50 intraperitoneal 1950mg/kg (1950mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
rat LD50 oral 9550mg/kg (9550mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
rat LD50 skin > 5gm/kg (5000mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.
rat LD50 subcutaneous > 6gm/kg (6000mg/kg)   Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. Vol. 36, Pg. 44, 1984.

Safety Profile

Moderately toxic by intraperitoneal route. Mildly toxic by ingestion. When heated to decomposition it emits toxic fumes of Cl−, SOx, and NOx. See also SULFONATES.