Appearance：White flake          
Assay：≥99%
Volatiles：≤ 0.5%
Ash：≤ 0.1%

Appearance：White crystal             
Assay：≥99%
Melting point：48-53°C
Volatiles：≤ 0.5%
Ash：≤ 0.1%

Appearance：White crystal              
Assay：≥99%
Melting point：99-103°C
Volatiles：≤ 0.5%
Ash：≤ 0.1%

Appearance：White powder             
Assay：≥99%
Melting point：62-68°C
Volatiles：≤ 0.2%
Ash：≤ 0.1%

Appearance：Pale yellow liquid              
Assay：≥99%
Mositure：≤ 0.5%

Appearance：Pale yellow powder              
Assay：≥99%
Melting point：72-76°C
Volatiles：≤ 0.5%
Ash：≤ 0.1%

Appearance：Pale yellow powder              
Assay：≥99%
Melting point：71-75°C
Volatiles：≤ 0.5%
Color：≤ 7

Appearance：Brown solid
Assay：≥95%

Appearance：White powder           
Assay：≥99%
Melting point：84-86°C
Volatiles：≤ 0.5%
Ash：≤ 0.1%

Appearance：Pale yellow flake              
Assay：≥99%
Melting point：≥107.3°C
Insoluble(Benzene)：≤ 0.05%
Fe：≤ 5ppm
Cl: ≤ 5ppm
S: ≤ 5ppm