Teflubenzuron manufacturers and suppliers in india

Teflubenzuron

Properties

Melting point:: 221-224°

Density: 1.646±0.06 g/cm3(Predicted)

vapor pressure: 8 x 10 -7 mPa (20 °C)

storage temp.: 0-6°C

solubility: DMSO (Slightly), Methanol (Slightly, Heated, Sonicated)

pka: 8.16±0.46(Predicted)

Water Solubility: 0.019 mg l^-1 (23 °C)

color: White to Off-White

Merck: 13,9190

BRN: 8229925

LogP: 4.98 at 20℃ and pH4.7

Safety Information

Symbol(GHS): GHS08,GHS09

Signal word: Warning

Hazard statements: H373-H410

Precautionary statements: P260-P273-P314-P391-P501

RIDADR: 3077

WGK Germany: 2

RTECS: CV3459590

HazardClass: 9

PackingGroup: III

Toxicity: LD50 orally in rats: >5000 mg/kg (Becher)

Use

Method 1 The addition reaction of 2,6-Difluorobenzamide and 2,4-difluoro-3,5-dichlorophenyl isocyanate Method 2 preparation of 2,4-Difluoro-3,5-dichlorophenylamine 2,3,4,5-tetrachloronitrobenzene and Potassium fluoride react in DMF solvent at 140℃ for 15h to obtain 2,4-Difluoro-3,5-dichloronitrobenzene，which is then reduced to 2,4-Difluoro-3,5-dichlorophenylamine Preparation of Teflubenzuron As for the preparation of 2,6-difluorobenzoyl isocyanate, see details in the preparation of Teflubenzuron. 2,6-difluorobenzoyl isocyanate and 2,4-Difluoro-3,5-dichlorophenylamine react at room temperature for 15h to obtain Teflubenzuron As for the nitrification, chlorination, reduction, fluorization and condensation of 1,2,4-Trichlorobenzene to prepare Teflubenzuron, see details in bibliography.