Items

Requirements

Results

Description 

White powder or crystalline powder

Conformity 

Absorption ratio

A250 / A260 = 0.90~1.00

A280 / A260 =0.62~0.72

0.94

0.68

pH

2.5~5.0

4.0

Clarity of Solution

and Color  

Conformity

Conformity

Protein

Conformity

Conformity

Purity (HPLC)

not less than 95.0%

95.4%

Loss on drying

not more than15.0% 

10.4%

Contents (on dry basis)

not less than 85.0%  

99.3%