Chemical name : 3-Pyridinecarboxylic acid 2-{[(3-trifluoromethyl)phenyl]amino}-1,3-dihydro-3-oxo-1-soenzofuranyl ester 
Molecular formula : C₂₁H₁₃F₃N₂O₄ 
CAS No : 66898-62-2 
Structure Formula ：

Specification : 
(1) Appearance : Slight yellow crystal powder 
(2) Assay : ≥99% (HPLC) 
(3) Melting point : 165-167℃ 
(4) H2O%(KF) : ≤0.5%
Package : 25kg fiber drums