[Common Name]: Leflunomide
[Chemical Name]: 5-methyl-N-[4-(trifluoromethyl)phenyl]-4-isoxazole carboxamide
[Molecular Formula]: C₁₂H₉F₃N₂O₂
[Molecular Weight]: 270.21

[Packing]:1kg/5kg in aluminium tin . 20kg in cardboard drum.

[C A S Number]: 75706-12-6

[Chemical Structure]:

[Quality standard]:

Item	Requirement	Result
Description	White crystals powder	White crystals powder
Melting point	165-166?C	165-166?C
Identification	IR	Identical
Assay	≥99%	99.5%
Heavy metal	≤10ppm	≤10ppm
Loss on drying	≤1.0%	≤1.0%
Ask	≤0.1%	≤0.1%
Conclusion:Complies with requirements of standard