Amicarbazone (95%TC 70%WDG)

Specifications 
Common name: Amicarbazone 
Chemical name: 4-Amino-5-oxo-3-propan-2-yl-N-tert-butyl-1, 2, 4-triazole-1-carboxamide 
CAS No.: 129909-90-6 
Molecular Formula: C10H19N5O2 
Formula weight: 241.29 
Specification: 95%TC 70%WDG 
Physical & Chemical Properties 
Technical Content: 95% 
Formulation available: 70%WDG 
Appearance: White crystal 
Melting point 81-82; 
Solubility (20): Hexane4.5g/kg, carbinol 50g/kg, toluene 390g/kg, Water 2.5mg 
Toxicity 
LD50 in rats (mg/kg): 1015 orally; >2000 dermally; LC50 in rats (4 hr): 2.242 mg/l air; LC50 in bluegill sunfish, rainbow trout (96 hr): >129, >120 mg/l (Philbrook) 
Application 
Amicarbazone is a new triazolinone herbicide with a broad spectrum of weed control. The phenotypic responses of sensitive plants exposed to amicarbazone include chlorosis, stunted growth, tissue necrosis, and death. Its efficacy as both a foliar- and root-applied herbicide suggests that absorption and translocation of this compound is very rapid. This new herbicide is a potent inhibitor of photosynthetic electron transport, inducing chlorophyll fluorescence and interrupting oxygen evolution ostensibly via binding to the Qb domain of photosystem II (PSII) in a manner similar to the triazines and the triazinones classes of herbicides. As a result, its efficacy is susceptible to the most common form of resistance to PSII inhibitors. Nonetheless, amicarbazone has a good selectivity profile and is a more potent herbicide than atrazine, which enables its use at lower rates than those of traditional photosynthetic inhibitors.