Pyrithiobac-sodium Chemical Properties

Melting point:

233-234°C

Flash point:

234°C

storage temp. 

Keep in dark place,Inert atmosphere,2-8°C

solubility 

Aqueous Base (Slightly), Water (Slightly)

form 

Solid

color 

Yellow to Dark Yellow

Water Solubility 

705 g/L (pH7)

Decomposition 

234 ºC

Stability:

Hygroscopic

InChI

InChI=1S/C13H11ClN2O4S.Na/c1-19-9-6-10(20-2)16-13(15-9)21-8-5-3-4-7(14)11(8)12(17)18;/h3-6H,1-2H3,(H,17,18);/q;+1/p-1

InChIKey

CNILNQMBAHKMFS-UHFFFAOYSA-M

SMILES

C1(SC2=CC=CC(Cl)=C2C(=O)[O-])N=C(OC)C=C(OC)N=1.[Na+]

EPA Substance Registry System

Pyrithiobac-sodium (123343-16-8)

Safety Information

Toxicity

LD50 in male, female rats (mg/kg): 1000-3000, 3000-5000 orally; LD50 in rats (mg/kg): >2000 dermally (Takahashi)

Pyrithiobac-sodium Usage And Synthesis

Description

Pyrithiobac-sodium is a post-emergence herbicide for the control of broad-leaved weeds in cotton and other crops. It has a high aqueous solubility, is non-volatile and, based on its chemical properties, it is very mobile and has high potential to leach to groundwater. It is generally moderately persistent in soil systems but tends to be non-persistent in aquatic systems. It has a low mammalian toxicity but may bioaccumulate.

Chemical Properties

Pure product is white solid; Melting point: 233.8-234.2?C (decomposition); Vapor pressure: 4.80 *10^-9 Pa; Partition coefficient: LogP(20?C) = 0.6(pH 5), -0.84(pH 7). Solubility in water(20?C,g/l):264(pH 5),705(pH 7),690(pH 9),728(distilled water);Solubility in other solvents(20?C,mg/l):acetone 812,methanol 270000,dichloromethane 8.38,n-hexane 10.Stable for 32 days in aqueous solvents at pH 5-9,27°C,and for 15 days in storage under heat at 54°C. Stable in pH 5-9, aqueous solvent at 27°C for 32 days, heated at 54°C for 15 days.

Uses

Herbicide.

Uses

Pyrithiobacsodium can be used as pesticides of interest in agricultural crop.

Definition

ChEBI: Pyrithiobac-sodium is an organic molecular entity.

Mechanism of action

Pyrithiobac sodium acts on Acetolactate Synthase enzyme of the plant leaf and controls the growth of weeds and Quizalofop ethyl acts on acetyl-CoA carboxylase (ACCase) enzyme which stops the only grassy weed growth.

Pyrithiobac-sodium(123343-16-8)Related Product Information

• Sodium hydroxide
• Sodium bicarbonate
• Sodium benzoate
• Benzyl benzoate
• Sodium chloride
• Sodium sulfate
• Denatonium Benzoate Anhydrous
• Emamectin benzoate
• Sodium citrate
• Diphenyl sulfide
• Diclofenac sodium
• Dimethyldimethoxysilane
• Borane-methyl sulfide complex
• Sodium acetate
• Dimethyl sulfide
• 1,1-Dimethoxyethane
• Dimethoxymethane
• Diphenyldimethoxysilane